58248255 mathimatika b gymnasioy theoria askiseis
TRANSCRIPT
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1 1 1 1 1
2 2 2 2 2
3 3 3 3 3
1
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;
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( + )
( ) .
( + ) , -
( ) .
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0)
0-5 -4 -3 -2 -1 1 2 3 4 51
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1
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3
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O
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14.
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; : + 6, 6, 1/2, 0
.
:
6 6+ = , 1 1
2 2 = ,
6 6 =,
0 0= , -
, .
,
. .. +8 > +4 +3 > 5
, ..3 1
5 3+ > .
,
, .. +9 > +3 9 9+ = 3 3+ = . ,
, .. 10 < 2 10 10 = 2 2 = . .
> 0, < 0.
; : 3, 1/3,
+ 2 , + 3, 2, 2/3.
-
. -
: 3 +3 +2 2.
.
0-6
6
0 6
6
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15.
- - -
; -
; - : 2 +4, +3 +6, 1/3 3/5
.
.
.
2 +4
+3 +6 1/3 3/5
;
:
(+3) + (+2) , (7) + (2).
-
, - . ,
( ) ( ) ( )3 2 3 2 5 5+ + + = + + = + =
( ) ( ) ( )7 2 7 2 9 + = + =
-
; :
(+5) + (7) ,10 3
4 4
+ +
,
. ,
( ) ( ) ( )5 7 7 5 2+ + = =
10 3 10 3 7
4 4 4 4 4
+ + = + = +
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16.
- - -
;
1. : + = +
.. ( ) ( ) ( ) ( ) ( )3 2 2 3 2 3 5 5+ + + = + + + = + + = + =2. : + ( + ) = ( + ) +
.. ( ) ( ) ( )[ ] ( ) ( )[ ] ( )2 3 4 2 3 4 3 3+ + + + = + + + + = + =
, + () = 0.
.. (+5) + (5) = 0 + 0 = .
.. (+3) + 0 = +3, (6) + 0 = 6
. -
:
(7) + (5) + (+2) + (+7) + (1)
-
:
1. ( -
) .
2. .
3. -
.
.. ( ) ( ) ( ) ( ) ( )7 5 2 7 1 + + + + + + =
1 ( )7 ( ) ( ) ( )5 2 7+ + + + + ( )1+ =
2 ( ) ( ) ( )2 5 1+ + + =
3 ( ) ( ) ( )2 6 6 2 4+ + = =
, -
,
-
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17.
- - -
.
.. ( ) ( ) ( ) ( ) ( )7 5 2 7 1
+ + + + + + =( ) ( ) ( ) ( )12 2 7 1 + + + + + =
( ) ( ) ( )10 7 1 + + + = ( ) ( )3 1 4 + =
,
, .. ( ) ( ) ( )2 3 6 2 3 6+ + + + = + .
, ;
:
(+4) (2) (+7) (+3)
, , -
x
.
+ x = x = .
,
, :
= + ( ) = + ( ).
( ) ( ) ( ) ( )4 2 4 2 6 6+ = + + + = + =
( ) ( ) ( ) ( )7 3 7 3 4 4+ + = + + = + =
.
-
( + ) ;
( ) ;
-
:
(+3 2 + 4) + (4 + 6) (3 2 + 4) -( 4 +6)
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18.
- - -
-
( + ), -
.
( ),
-
.
,
( ) ( )3 2 4 4 6 3 2 4 4 6+ + + + = + + +
( ) ( )3 2 4 4 6 3 2 4 4 6 + + = + +
, -
, .
1. , -
.
2. , -
-
.
3. ( + ),
-
.
4. ( ),
-
.
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19.
- - -
:
32 3 5 6 4 54, , 3, 5, , 3, 5, , , 1, 2, , 5, 6, 3, 5, 6,
8 2 2 3 8 20
:32
48
= 3 1,52
=
52,5
2=
62
3=
40,5
8 =
50,25
20=
:
.
. 8 . +4,5 .1
3 . 8,3 .
6
5+ .
7
8
.
: . 8 8 = + . 4,5 4, 5+ = + .1 1
3 3 = +
. 8, 3 8, 3 = + .6 6
5 5+ = + .
7 7
8 8 = +
-
, -
, -
. -
.
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20.
- - -
.
:. 8 +8.
. +4,5 4,5
. 1
3
1
3+ .
. 8,3 +8,3.
. 6
5+
6
5 .
.
7
8
7
8+ .
(< )
( >).
. +5 .....+7 . 7,8 ..... +0,5 . 3,1 ..... 2,9 .1 1
2 ..... 24 2
. 1,8 .... 1,08 . 3 .... 8 . +13 .... +8 .1 2
.....8 3
. +5 8 .+13 > +8 .1 2
8 3 >
:
. 4 < ... < +2 . 5 < .... < 0 . 2 < .... < 1
. 1 < ....< 1 . 4 < .... < 5 . 0 < .... < 1/2
.4 < 1 < +2 . 5
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21.
- - -
7, 6, 5, 4, 3, 2, 1, 0, +1, +2, +3, +4, +5.
:
. 2.
. 2.
. 4.
. +2.
. +4.
. +2.
. -5 +1.
. +1 +5.
. 4 .
. 2 : 3, 4, 5, 6, 7.. 2 : +3, +4, +5.
. 4 : 3, 2, 1, 0, +1, +2, +3, +4, +5.
. +2 : 3, 4, 5, 6, 7.
. +4 : +3, +2, +1, 0, 1, 2, 3.
. +2 :
7, 6, 5, 4, 3, +3, +4, +5.
. +1 5 : 4, 3, 2, 1, 0
. +1 +5 :+2, +3, +4, 2, 3, 4.
. 4 4. 4 4 = 4 4+ = : 4, + 4.
:
. 8 3 2 3 5 6+ + + + + + + + .1
4, 3 5,1 1, 8 72
+ + + + + +
.2 1 5
1
3 4 6
+ + + +
. 4 5 8 11 12 22 4 16+ + + +
+1/3 2/5 7 4 2 || +1/3 2/5 7 4 2
1/3 2/5 7 4 2
() () 1/3 2/5 7 4 2
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22.
- - -
. ( ) ( ) ( ) ( ) ( ) ( )8 3 2 3 5 6 + + + + + + + + = : ( ) ( )8 3 + + ( ) ( )2 3+ + + ( ) ( )5 6+ + + =
: ( ) ( ) ( ) ( )2 6 8 5+ + + + + =
: ( ) ( )8 13+ + = , -
: ( )13 8 5 = . :
( ) ( ) ( ) ( )1
4, 3 5,1 1,8 72
+ + + + + + =
( ) ( ) ( ) ( )1
5,1 4, 3 1,8 72
+ + + + + + =
( ) ( ) ( ) ( ) ( )5,1 0, 5 4, 3 1,8 7+ + + + + =
( ) ( )5, 6 13,1+ + =
( )13,1 5, 6 7, 5 = . :
( )2 1 5 13 4 6
+ + + + = ( ... 12)
8 3 10 12
12 12 12 12 + + + + =
10 23 23 10 13
12 12 12 12 12
+ + = =
. 4 5 8 11 12 22 4+ + + + 16 =
5 8 11 12 22 16+ + + =5 11 12 8 22 16+ + + =
( )28 46 46 28 18+ = =
:
. .... + (12) = +1 . .... + (20) = 4
. (+25) + .... = 0 . (10) + .... = 5
. (+13) + (12) = + (13 12) = +1.
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23.
- - -
+13.
. (+16) + (20) = (20 16) = 4. +16.
. (+25) + (25) = 0. 0.
.(10) + (+5) = (10 5) = 5. +5.
= x + y +z B = x + y + x = 2, y = +5,
z = + 1/2, = -2/3.
= x + y + z (1)
(1): ( ) ( ) 1
A 2 52
= + + + +
... (1,2) = 2
:4 10 1
A2 2 2
= + + + +
4 11 11 4 7A
2 2 2 2 2
= + + = + = +
B = x + y + (2)
: ( ) ( ) 2
B 2 53
= + + +
... (1,3) = 3
: 6 15 2B3 3 3
= + + +
6 2 15B
3 3 3= + + +
8 15 15 8 7B
3 3 3 3 3
= + + = + = +
.
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24.
- - -
, .
:
i. ( ) ( )8 5+ + ( ) ( )6 5+ + + ( ) ( ) ( )8 6 8 6 2= + + = + = +
ii. ( )3 ( ) ( )2 3+ + + + ( )0 2 0 2+ = + + = +
iii. ( )1+ ( ) ( )2 1+ + ( ) ( ) ( ) ( )4 2 4 4 2 2+ + = + + = + = +
iv. ( ) ( ) ( )4 6 7 + + + + ( )7+ ( ) ( ) ( )4 6 6 4 2= + + = + = +
:v. ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )8 3 1 4 8 1 3 4 9 7 9 7 2+ + + + + = + + + + + = + + = + = +
vi. ( ) ( )5 2 + + ( )2+ ( ) ( ) ( ) ( )6 5 6 6 5 1+ + = + + = + = +
(+1)
(+2). .
:
A 18 9 2 18 7 11 5+ + + + +
:
( ) ( ) ( ) ( ) ( ) ( ) ( )A 18 9 2 18 7 11 5= + + + + +
( )A 18= + ( ) ( ) ( )9 2 18+ + + + ( ) ( ) ( )7 11 5+ + + +
( ) ( ) ( ) ( ) ( )A 9 11 2 7 5= + + + + + +
( ) ( ) ( )A 20 14 20 14 6= + + = + = +
:A 10 7 18 2 7 6 + + + + +
2 1 5 7B 1
3 4 6 12
= + + +
:
( ) ( ) ( ) ( ) ( ) ( )A 10 7 18 2 7 6= + + + + + + +
-
-
. ..
( ) ( ) ( ) ( )9 8 9 8+ = + + + ( ) ( ) ( ) ( )5 3 5 3 = +
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25.
- - -
:
( ) ( )A 10 7= + ( ) ( ) ( )18 2 7+ + + + + ( )6+ :
( ) ( ) ( ) ( )A 18 10 2 6= + + + +
:
( ) ( )A 18 18 0= + + =
:
2 1 5 7B 1
3 4 6 12
= + + + + +
... (3, 4, 6, 12) = 12
:
12 8 3 10 7B
12 12 12 12 12
= + + + + +
:
12 7 8 3 10B12 12 12 12 12
= + + + + +
:
19 21 21 19 2 1B
12 12 12 12 12 6
= + = = =
: . x + (10) = 8 . x (2) = + 6
. x, 10 8. x 10 8.
: x = 8 (10) .
: x = 8 (10) = 8 + (+10) = + (10 8) = +2
.
. x + (+2) = +6. x (+2)
+6. x +2 +6.
: x = + 6 (+2) = +6 + (2) = + (6 2) = + 4.
: 8
x. !!!
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26.
- - -
:
: + = 8
, , . -
x .
: 4 + x (5) = 8 : 4 + x + (+5) = 8
: x + (4 + 5) = 8
x + 9 = 8
x +9 8. x +9 8.
: x = 8 (+9) = 8 + (9) = 17.
+ = +16
: x + (2) (+6) = +16
x + (2) + (6) = +16
x + (8) = +16
x 8 +16. x 8 +16.
: x = +16 (8) = +16 + (+8) = +24
: + = 15
: 4 + (3) x = + 7
(4 + 3) x = + 7
7 x = + 7
x 7 +7. x +7 7.
x = 7 (+7) = 7 + (7) = 14
: + = x
2 +(+8) (1) = x
2 +(+8) + (+1) = x
2 + (+9) = x
+7 = x
:
17, +24, 14 +7
-
:
4 4 2 2 3 +8
5 +6 1
+ 8 +16 +7
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27.
- - -
A 4 5 16 8 8 7 3 2 + + + + + B 12 9 20 14 15 5 + +
:
( ) ( )A 4 5 16 8 8 7 3 2= + + + + +
A 4 5 16 8 8 7 3 2= + + +
A 16 7 2 4 5 8 8 3= + + +
A 25 28=
A 3= :
( ) ( )B 12 9 20 14 15 5= + +
B 12 9 20 14 15 5= + + +
B 20 14 5 12 9 15= + +
B 39 36 3= = +
: A 10 11 + + +
( ) ( )A 10 11 = + + +
10 = + 11 + + 10 11 1= + = +
2 4
(): 3 x y 15 7 + + +
x +15.
: ( ) 3 x 15 y 7= + +
:
. () () . () (+) . () ()
. () () = + + = + . .
. () (+) = + = . .
. () () = + + = + . .
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28.
- - -
1. :
8, +6, +4/8, 8/4, +20, 15, +10,5, +1 1 2
2. :
. 10,8 . 12,5 . + 7,3
. 5,6 .5
8 .
6
5+
3.
.
.5, 7, 0, 2, + 4, 8, + 1
. 30,5, 24, + 7,3 , + 7,1 , 24,4
.3 3 1 3 4 7
, 4 , 5 , 2 , 2 , 24 10 4 5 5 10
+ +
4. () () :
. 7 2 < . 7 2 < . 8 8+ < . 8 8+ <
. 5 9< . 4 0 < . 4 0 < . 0 6<
5. :
. 8. ... 3 + . 3. ... 8 . 0 .... 5 . 5. ... 7+ +
. 4,2....0 . 0 .... 0,1 . 7,8 .... 7,08 . 5,1.... 5
6. :
.1
102
.8
3+ .
15
6 . 11
. 13,5+ . 6, 7 .18
25
.6
7
+
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29.
- - -
7. :
8. -
. ( )
. ( ) ( )4 12 16+ + + = + . ( ) ( )3, 2 2,3 0, 9 + + = .5 3
18 8
+ =
( ) ( )9 4 5 + + = ( ) ( )1, 6 2,1 0,5+ + = + 1 1 1
3 2 6
+ + = +
( ) ( )9 2 11 + = + ( ) ( )4, 4 5, 4 0,1 + + = + 3 1 2
5 2 3
+ + = +
( ) ( )8 15 23+ + = ( ) ( )6, 6 6, 6 12,12 + =
9. > , < = :
. ( ) ( ) ( )17 11 .... 23+ + + + . ( ) ( )15 15 .... 15 + + +
. ( ) ( )23 19 .... 2+ + + . ( ) ( ) ( ) ( )15 88 .... 25 98 + + + +
. ( ) ( )22 22 .... 0+ + .( ) ( ) ( ) ( )54 37 .... 24 67 + +
. ( ) ( )18 5 .... 22 + . ( ) ( ) ( ) ( )17 71 .... 25 25 + + +
10. :
x 4,5 +1/8 2/3 +11 12,3
x
x
x
+ +33 28 +54 70
+19
45
54
+62
+ 1/2 1/3 +3/4 +5/12
+1/2
1/3
1/4
7/12
+ 1,5 +0,1 7,2 +3,9
+2,2
3,9
+6,5
+0,1
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30.
- - -
11. :
( ) ( ) ( ) ( )A 10 12 8 16= + + + +
( )1 1 11
B 22 3 6
= + + + + +
18 25 71 64 101= + +
( ) ( ) ( ) ( ) 3, 05 1,15 7, 3 4, 6= + + + +
( ) ( )2 7
14 185 10
= + + + + +
30 45 68 25 72= +
12.
.
13. :
( ) ( ) ( ) ( ) 1,8 2, 05 1,8 2, 05= + + + + +
( )1 1 6
8 4 22 2 3
= + + + + ( ) ( ) ( ) ( ) 7, 4 1, 5 7, 4 13, 2= + + + +
1 1 1 1 1
2 4 8 10= + +
14. :
. 2, 2 7, 8 18, 6 20,1 5, 5 + + .3 1 5 1
28 4 16 2
+ +
. 1 1 1 21 7 1 22 3 6 3 + +
. 8, 3 10, 2 12, 4 3, 75 6, 25 + +
. 45,18 68,44 14,02 68, 45 10,13 +
15. 1
x2
= , y 1= ,3
z2
= ,1
23
= 2= +
:
A x y z= + + B x y = + + x y = + +
x y z
= + + + E x y z
= + + + x y z
= + + + +
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31.
- - -
16. :
. ( ) ( )2 5 + . ( ) ( )28 12 + . ( ) ( )16, 4 13, 6 .1 32 4
+
( ) ( )6 4+ + ( ) ( )33 40+ + ( ) ( )29,1 21, 9 + 5 2
6 3
+
( ) ( )14 10+ ( ) ( )52 32+ ( ) ( )26,1 24, 9 + 5 2
3 26 3
+
( ) ( )15 35 ( ) ( )60 60 ( ) ( )55,5 33, 3 2 4
1 35 5
+ +
17. = :
. ( ) ( )18 13 .... 18+ + + . ( ) ( )12 4 .... 12+ +
. ( ) ( )20 40 .... 20+ + . 19 19 .... 19+
. 37 37 .... 0 . ( ) ( )14 14 .... 0
18. :
. ( )x 12 1 + = + . ( )x 20 4 + = . ( )x 15 18+ =
. ( )x 8 10+ = + . ( )x 25 0+ + = . ( )x 7 7+ =
. ( )10 x 2+ = + . ( )6 x 20+ = . ( )x 2,5 9 = +
. ( )30 x 55+ = + . ( )8 x 12 = . 44 x 2 + = +
19. :
. ( ) ( ) ( ) ( )42 23 32 23 + + + . ( ) ( ) ( )8,35 9, 02 4,18 +
. ( )2 5 1
1
3 6 2
+ +
. ( ) ( ) ( ) ( )88 45 53 29+ + +
.3 3 4 7
7 5 2 64 20 5 10
+ + + +
. ( ) ( ) ( ) ( )5,33 8, 44 1, 29 4, 02+ + +
20. x y
.
( ) ( ) ( ) ( )A 18 x 15 60 100= + + +
( ) ( ) ( )B 14 y 16 9= + + +
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32.
- - -
21. :
.
.
22. :
. ( ) ( ) ( )75 28 60 + + . ( ) ( ) ( )57 40 16+ +
. ( ) ( ) ( ) ( )15 26 26 15+ + . ( ) ( ) ( ) ( )220 140 510 400 + + +
23. :
i. , ii. .. ( ) ( )30 5 6 8 7 18 22 + + + . ( ) ( )44 28 12 10 11 + +
. ( ) ( )8, 22 4, 91 3, 47 5, 3 12, 88 + .1 1 7 4
3 2 8 52 5 10 5
+
24. -
.
( ) ( )A 25 38 17 55 20 64= + + +
( ) ( )
B 10 22,8 88, 2 40 60= + + +5 5 3 5
8 6 12 4
= + ( ) ( ) 200 160 800 230 500= + + +4 2 2 5
E 1 56 3 3 6
= +
( ) ( ) 2,1 4, 5 8, 7 5, 9 3, 5 6, 6= + + + +
3 5 1 1Z 1 7
4 12 12 3
= +
4 +22 +12 +15
+8 7 6
+8 10 13 8
10 14 +6 +11
( + ) ( ) ( ) + ( + )
2 8 5
9 6 10
4 0 4
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33.
- - -
25. :( ) ( )A 20 x y 4 x y 16= + + +
( ) ( )B y x 12 x y 11= + +
( ) ( ) x y 6 x y 6= + + +
( ) ( ) x y 18 x y 18= + + +
26.
:
( ) ( )A 12,8 7 1, 4 7,5 8, 2 7, 4 = + + +
( )[ ] ( ) ( )[ ]B 40 30 15 18 25 30 16= +
( ) ( ) ( )[ ] 8 1 7 15 8 10= + +
( )[ ] 3 500 2000 500= +
27. A x y 10= B x y 20= + + + .
28. :. ( )20 x y 35 + x 10= y 8= + .
. ( ) ( )x y 10 x y + x 4= y 5= .
. ( ) ( )x y y x + + x 1= y 1= .
29. :
( ) ( ) ( )A 18 x y 2 x 20 y = + + x y 4 =
30. x + y (x + y);
. ( ) ( )x y + . ( ) ( )x y . ( )x y + . ( )x y
. ( ) ( )x y+ + . ( )x y . ( )x y + . ( ) ( )y x
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34.
- - -
1
;
() ;
2
;
1
:
.( 8) + (+3) + (+2) + (3) + (5) + (+6)
. 2 1 5 713 4 6 12
+ + +
2
:
. ( )x 3 4 = + . ( )4 x 12 = +
3
: ( ) ( )A 2 x y 1 x 2y = + + ,
x 1= y 1= .
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;
:(+2) (+4) (3) (2)
-
,
(+).
( ) ( )2 4 8 8+ + = + = ( ) ( )3 2 6 6 = + =
;
:
3 4 2
43
+
-
,
() .
( ) ( )3 4 12+ = ( ) 2 843 3
+ =
:
( ) ( ) ( )+ + = + ( ) ( ) ( ) = +
( ) ( ) ( )+ = ( ) ( ) ( ) + =
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36.
- -
;
:
= [ ]
0 0 = 1 =
( ) ( ) = [ ]
( ) + = + ( ) + = +
( ) = ( ) =
[ ]
;
: +5, 3, 2/5.
+ 1
. -
. ,
+5 15
+ .
3 1
3 .
2
5
5
2 .
;
-
, -
-
(+)
()
.
1
x x 0= .
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37.
- -
.
:
.
;
-
: 4
2
+
+
,60
5
,9
3
+
,6
2
+
.
, -
:
(+) .
() .
,
4
2 22
+= + =
+,
6012 12
5
= + =
,
9
33
+=
,
63
2
=
+.
, ;
:
, 0
.
, -
,
1
=
:
( )
( )( )
+= +
+ ( )
( )( )
+=
( )
( )( )
= +
( )
( )( )
=
+
, .
.
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38.
- -
1. , -
( + ).
2. ,
-
( ).
3. +1 .
4. ,
( + ) ( ) -.
5. ,
( + ),
( ).
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39.
- -
:
. 3 4 + . 3 4 + . 3 4 . 3 4
. 2 7 . 2 7 . 2 7 + . 2 7 +
. (+)
. ( ) ( )3 4 12+ + = +. ()
. ( ) ( )3 4 12 + =
. : ( ) ( )3 4 12 = +
. ( ) ( )3 4 12+ =
. ( ) ( )2 7 14 = +. ( ) ( )2 7 14+ =
. ( ) ( )2 7 14+ + = +
. ( ) ( )2 7 14 + =
:
. 3 8 4 2 + . 9 11 4 15 + +
. 0, 25 8 1, 5 1, 5 + +
.1 1 1 1
2 3 3 2
+ + +
. :
( ) ( ) ( ) ( )3 8 4 2 + = ( )24 8 24 8 32+ = + + = +. :
( ) ( ) ( ) ( ) ( )9 11 4 15 99 60 159+ + + = + =
. ( ) ( ) ( ) ( ) ( )0, 25 8 1, 5 1,5 2 2, 25 4, 25 + + = + =
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40.
- -
.1 1 1 1 1 1 2 1
2 3 3 2 6 6 6 3
+ + + = + = =
:
.1
4 2 32
+ . 5 6 8 12 + . ] 8 5 3 +
, -
:
. ( ) ( )1 1 1 5 54 2 3 52 2 2 1 2 + = = =
. ( ) ( )5 6 8 12 5 10 50 + = + =
. ( )[ ] ( ) ( ) ( ) ( ) ( )8 5 3 8 5 3 8 15 15 8 7 + = + + = + = =
, , , , . .
( ) ( ) 7 2 14= + = , ( ) ( ) 4 2 8= + + = + ,( ) ( ) 9 2 18= + = ,
( ) ( ) 7 6 42= = + , ( ) ( ) 4 6 4= + = 2 , ( ) ( ) 9 6 54= = + .
:
10y 2y , ]B 10 4 y 2y , 4y y y 1 .
[ ( + ) = + ]
y 1:
( ) ( ) ( ) ( ) ( )A 10y 2y 10 2 y 10 2 1 12 1 12= = = = = +
( )[ ] ( )[ ]{ } ( )[ ] ( )B 10 4 y 2y 10 4 2 y 6 2 1= = = + =
( ) ( ) ( )8 1 8 8= = + =
( ) ( ) ( ) ( ) ( ) 4y y 4 1 y 4 1 1 3 1 3= = = = + =
:
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41.
- -
.1
1, 8 3 1, 8
3
+
.1 1
2 2
2 2
+ +
.1 1 1 1
2 1 5 22 2 2 2
+ +
. 2003 2004 0 +
. 3, 4 2,1 6, 7 2,1 + . 6 8 2 16 +
. ( ) ( ) ( ) ( )1 1 1 3
1,8 3 1,8 1,8 3 1,8 3 13 3 3 3
+ = + + = + = + = +
. ( ) ( )1 1 2 22 2 02 2 2 2 + + = + + =
.1 1 1 1 5 3 11 5
2 1 5 22 2 2 2 2 2 2 2
+ + = + + + =
15 55 70 35
4 4 4 2
= + + + = + =
. , , ,
, 0 0 = 0 0 = . ( ) ( )2003 2004 0 0 + =. ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )3, 4 2,1 6, 7 2,1 7,14 14, 07 7,14 14, 07 + = + = + =
( )14, 07 7,14 21, 21= + =
. ( ) ( )6 8 2 16 6 22 132 + = = +
:
x , , :
( )[ ] ( ) ( ) ( ) ( ) ( ) ( ) ( )3 12 10 6 3 12 10 6 3 22 6 66 6 72 + = + + = + + = + =
( )[ ] ( ) ( ) ( ) ( ) ( ) ( ) ( )3 12 8 6 3 12 8 6 3 4 6 12 6 18 + + = + = + + = + =
( )[ ] ( ) ( ) ( ) ( ) ( ) ( ) ( )3 12 5 6 3 12 5 6 3 17 6 51 6 57 + = + + = + + = + =
x 3 (12 x) + (6)
10
+ 8
5
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42.
- -
:
. 3 x 2 y
+
. 1 x 1 y
:
. ( ) ( ) ( ) ( )3 x 2 y 3 2 y x 2 y 3 2 3 y x 2 x y 6 3 y 2 x x y + = + + = + = +
. ( ) ( ) ( ) ( )1 x 1 y 1 1 y x 1 y 1 1 1 y x 1 x y 1 y x x y = = + = +
x 1
y 1+ :
A x x y 2 x y y y x + +
x y ,
,
.
( ) ( ) ( )A x x y 2 x y y y x= + + =
( )[ ] ( ) ( )[ ] ( ) ( ) ( )[ ]1 1 1 2 1 1 1 1 1= + + + + + + =
( ) ( ) ( ) ( )1 1 1 2 1 1 1 1 1= + + + + =
( ) ( ) ( )1 0 2 2 1 2= + + + =( )0 4 2 4 2 6= + + = + + = + . A 6= +
:
. 2 8 1 7 + .4 1
17 3 13 2
+
. 8, 4 3, 5 1, 2 + . 4 5 2 3 12 + +
. 3, ,
().
: ( ) ( ) ( ) ( )2 8 1 7 112 + =
. 4, .
(+).
: ( ) ( ) ( )4 1 204
17 3 1 343 2 6
+ = + = +
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43.
- -
. : ( ) ( ) ( )8, 4 3, 5 1, 2 35, 28 + = +
. : ( ) ( ) ( ) ( ) ( )4 5 2 3 12 1440 + + =
:
. x x y x y y x+
, x 1
, y 1+ .
. x x y y x y + , x 1+ , y 1 .
x y -
, . :
. ( ) ( )( ) ( ) ( ) ( )[ ] ( ) ( )[ ] ( ) ( )[ ]x x y x y y x 1 1 1 1 1 1 1 + = + + + + =
( ) ( ) ( ) ( ) ( ) ( ) ( )1 1 1 1 1 1 1 1 0 2 2 0 + + + = + =
. ( ) ( ) ( ) ( ) ( )[ ] ( ) ( )[ ] ( )x x y y x y 1 1 1 1 1 1 + = + + + + =
( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )1 1 1 1 1 1 1 2 2 1 4 4 + = + = = +
:
2= + , 1= 2= :
( ) ( ) 2 1 2 = + = , ( )( ) 1 2 2 = + = [ ]
( ) ( ) ( ) 2 1 2 4 = + = + ,
( ) ( ) ( ) ( )[ ] ( ) ( ) ( ) ( ) 2 1 2 2 1 2 2 3 6 + = + + = + = + =
3= + , 1= + , 4= :
( ) ( ) 3 1 3 = + + = + , ( ) ( ) 1 3 3 = + + = + ,
( ) ( ) ( ) 3 1 4 12 = + + = , ( ) ( ) ( ) ( )[ ] ( ) ( ) 3 1 4 3 3 9 + = + + + = + =
:
( + )
+2 1 2
+3 +1 4
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44.
- -
. 8 23 ... 16 3 1 .... = +
. 10 2 4 ... 5 6 .... + + =
. 4 5 ... 2 3 5 .... + + = +
.
.
.
( ) ( ) ( ) ( ) ( )8 23 16 3 1 8832+ = +
:
. ( ) ( ) ( ) ( ) ( )10 2 4 5 6 2400 + + =
. ( ) ( ) ( ) ( ) ( )4 5 2 3 5 600 + + + = +
:
. 1 1 1 1 1 1 . 1 1 1 1 1 1 + + + +
. .
: ( ) ( ) ( ) ( ) ( ) ( )1 1 1 1 1 1 1 = +. ( ).: ( ) ( ) ( ) ( ) ( ) ( )1 1 1 1 1 1 1+ + + + + =
:
. x y + + . x y
. ( ). .
. ( ). .
:
A x y x y x y x y + + + + + , x 2 y 2+ .
x y :
( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )A x y x y x y x y= + + + + + =
( )[ ] ( )[ ] ( )[ ] ( )[ ] ( )[ ] ( )[ ] ( )[ ] ( )[ ]2 2 2 2 2 2 2 2= + + + + + + + + + =
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45.
- -
( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )2 2 2 2 2 2 2 2= + + + + + =
( ) ( )16 16 32= + + + =
:
. 25 : 5 . 4 9 : 7 .1 1
:2 3
. 100 : 10 . 2, 8 : 7 . 35 :10
. 2, 25 : 1, 5 .
36 : 6 : 2
. 60 : 15 : 2+
:
. ( )25 : 5 5 = . 49 : 7 7 =
.1 1 1 3 3
:2 3 2 1 2
= = +
. ( ) ( )100 : 10 10 = + . ( )2,8 : 7 0, 4 =
. ( )35 :10 3, 5 = . ( )2, 25 : 1, 5 1, 5 =
. ( ) ( ) ( ) ( )36 : 6 : 2 6 : 2 3 = = + . ( ) ( ) ( ) ( )60 : 15 : 2 4 : 2 2 + = + =
:
1 1 1 1A 2 : 3
3 2 2 5
= +
: ( ) ( )2 3 1 1
A 2 : 3
6 6 2 5
= +
: ( ) ( )5 1 5
A 2 36 2 1
= +
10 15A
6 2= +
: 10 45 10 45 55
A6 6 6 6 6
= + = =
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46.
- -
:
. 3 . 83
. 54
1
. :
. 3 1
3 .
. 8
3
1 3
8 83
=
. 5
4 1 4
5 5
4
=
.
:
. 3 8 55
4 5 10 +
.2 3 1
5 4 2
+
+
. :
( ) ( ) ( ) ( )3 8 55
0, 75 1, 6 5, 5 0, 75 1, 6 5, 54 5 10
+ = + = + + + =
( ) ( ) ( )2, 35 5,5 5, 5 2, 35 3,15= + + = + = +
.( ) ( ) ( )
( ) ( ) ( ) ( )
2 3 1 6 11, 2 0,125
5 4 2 5 8
+ + + = + = + = +
( )1, 2 0,125 1, 325= + =
:
. 2 3 4 48 + = . 5 1 100 = +
20 :
. ( ) ( ) ( )2 3 4 48 + = . ( ) ( )5 1 100+ = +
24 48+ = 5 100 = +
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47.
- -
( ) 48 : 24= + ( ) ( ) 100 : 5= +
2= 20=
:
, , :
3= , 1= , 1= + .
( ) ( ) ( ) ( ) ( )( ) ( ) ( ) ( ) : : 3 : 1 3 : 1 3 1 3 3 3 + = + + = + + + =
( ) ( ) ( )3 3 3 9= + + + + + = +
5= , 2= + , 5= + :
( ) ( ) ( ) ( ) ( )( ) ( ) ( ) : : 5 : 2 5 : 5 5 2 2, 5 1 10 + = + + + + = + =
( ) ( ) ( ) ( )2, 5 1 10 12, 5 1 12, 5 1 11, 5 + + + = + + = =
: = 2[3 (5)] + (3) : (5 + 3)
( )[ ] ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) 2 3 5 3 : 5 3 2 3 5 3 : 2 2 8 3 : 2= + + = + + = + + =
( ) ( )16 1, 5 16 1,5 14, 5= + + = =
3 1 +1
5 +2 +5
: : +
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48.
- -
1. :
. ( ) ( )7 4+ . ( ) ( )8 10+ . ( ) ( )3 14+ . ( ) ( )21 3+
. ( ) ( )3, 5 2+ . ( ) ( )4,5 3+ + . ( ) ( )0, 4 9+ . ( ) ( )0,3 0,8+
.1 8
2 3
+
.1 5
12 6
.7 1
23 3
.1 2
3 5
2.
( ) ( ) ( ) ( ) ( ) ( )A 5 3 4 1, 5 8 0,5= + + + +
( ) ( ) ( ) ( ) ( ) ( )B 1,5 5 3 4 2 6= + + + +
( ) ( ) ( )
2 1 1 1 3 5
3 2 4
= + +
( ) ( ) ( )1 1 1
1 4 2 3 3 22 2 2
= + + + ( ) ( ) ( ) ( ) ( ) ( ) 5 3 4 3 7 4= + + +
3.
x 2= y 1= .
A 10x 2x= ( )B x 5x 3y y= +
( ) x y 5x 5y= + 6x x y 2y= + +E 6, 5x 7x 2x x= + 8y 4y 0, 5y 3, 5y=
4. :
.
+3 4 +5
+3 4 5
3 +4 5
+
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49.
- -
.
5. :
( ) ( )A 3x 5y 2 4y 4x= + , x 1= y 2= + .
( )B 2x x 2y 4 = + , x 2= y 1= .
( ) 18x 24y 3x 5y= + , x 2= y 2= .
12x 8y 4y 8x= + + , x 1= y 1= .
6. :
1
2 , 3,
6
5+ , 4,
2
3,
1
7 , 8
7. 15 11
;
8. :
. ( )( )x 1 1 + . ( )( )x 1 1+ . ( )( )3 x 1 1 + +
. ( )( )4 x 1 + . ( )( )1 1 x + . ( )( )x 2 5
9. :
. .
10. :
. ( )( )( )( )( )( )2 3 4 5 1 6 + + . ( )( )( )( )( )( )2 3 4 5 1 6+ + +
2 +1 3
+2 1 +3
2 +1 3
x y x y x (y) y x(y)x 2 (x y + x )
x 4 (8 x) 5
1
+2
3
+4
5
y y ( 2) + 10
1/2
+1/3
2/5
+5/6
1 1/2
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50.
- -
.
( )1 4 1 2
82 3 3 4
+ + . ( )( )( )
( )0, 5 1, 5 2, 5 100 +
. ( )( ) 1 1
100 100100 100
+ +
11. :
. ( )( )( )( ) ( )( )( )( )4 0, 5 8 0, 5 2 3 1 5 + + + +
. ( )1 1 1 1 1 1
12 2 3 3 4 9
+ + +
. ( )( )( ) ( )( )( )2 3 4 2 3 4 + + +. ( )( )( ) ( )( )( )( )1 0,8 10 1 2 0, 9 10 + + +
12. .
. ( )( )( )( )1 4 ... 5 3 60 + = . ( )( )( )( )2 5 ... 7 4 280 + = +
. ( )( )( )( )1 1 1 ...1 1 + = + . ( )( )( )( )( )3 3 ... 3 3 3 243 + + =
13. x 1= , y 2= , 1= + .
( )( )( ) x x y x y x = + + ( ) ( ) ( )B 4 x x y x y = +
( )( )( )( ) x y x y x = ( )( ) ( ) 10 x y y x = +
14. () () .
:
. .
. 18 10 .
. +1
.
. (1)
.
. .
15. :
A x y z= ( )B x y z z y z= ( ) ( ) ( )( ) x y z x y z x y z= +
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51.
- -
x 1
2
, y +3 z
+2.
16. :
17. x, y, z .
.( ) ( )( )
2 3 4 x 24 + = .( )( )( )( )
1 1 2 3 y 12 + = . ( ) ( )4 z 7 56 + = + . ( )( )( )2 3 4 x 96 + =
18. :
A x 2y= ( )B x y 4= x A y B= , x 1= y 2= .
19. :
. .
4 2
1 +4 2
+5 +1 3
+3 4 1
x y x y () x y x y (10) +2 1 2
+1 2 1
2 1 1
2 +2 +1
: 1 1 5 7 82 3 2 4 5
+ +
1
2
1
3
1
4
1
5
+
+
: +16 -32 +64 -12 -128
2
+ 2
4
+ 4
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52.
- -
20. :
.3 :0,52
.
( ) ( )0, 25 : 0, 5 . ( )32 : 2080
.5 6
:6 5
. ( )1
1 : 152
. ( )16
: 1008
21. :
( )( )( )
( )
2 8 5A
10
+ =
( )( )( )
( )
( )( )
( )
4 21 2 7 9B :
8 3
+ =
( )( ) ( )( )( )( )( )
8 3 8 1 3 :
5 2 5 +=
( )( )( )( )( )( )
6 8 22
3 4 2 += + +
2 4 3E :
5 5 5
= +
( )( )
( )( )
10 3 4 : 100
2
+ +=
22. :
( ) ( ) 10 x 4 : 5 y= + + ( ) ( ) ( ) ( )B x : y x 4 : 3 y= +
( ) ( ) 3 x y : y 11 = + ( ) ( ) x y : x y= +
( ) ( )E x y : x y= + x 2= y 1= .
23. :
. 5x 60 = . 10x 200 = . 10x 40= . 2x 12 = + . 8x 16+ = + . 5, 5x 55=
.1
x : 42
= + .
x4
5= . ( )x : 7 2 =
. ( )x : 10 3 = + . 7x 49 = .x
28 =
24. 2 +18
9.
25. :
( )[ ] ( ) ( )A 6 4 3 18 : 9= + +
( ) ( ) ( )B 32 : 18 16 75 : 25= + +
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53.
- -
( )[ ] ( ) ( ) 200 : 50 150 45 15 : 6= +
26. :
27. x, y, , .
i. ( )( )( )2 3 4 x 48 + = ii. ( )( )( )5 8 2 y 240 + + = +
iii. ( ) ( )( )5 10 3 300 + = + iv. ( )( )( ) 16 3 4 192 =
28. :
( ) ( ) xy x y : y xy : 2 = + x 2 y 3.
29. :
( ) ( ) ( )A 3 x y x 4 y : x 4= + + + +
( ) ( ) ( ) ( )B x x y y x y x y : x y= + + + +
x 2= y 1=
x y z x y : z (x + y) : (x + y) : z
8 +4 2 +1
6 +12 4 1
+14 2 +2 1
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54.
- -
1
;
; .
2
;
, ;
1
:
. ( ) ( )1 1
4 22 4
+ + .
( ) ( )3 2 +
2
:
( ) ( ) ( ) 3 x y x 4 y : x 4= + ( ) ( ) ( )B x x y y x y x y= + + + + ,
x 2= y 1= .
3 :
( ) ( ) ( )
( ) ( )
2 3 8A
6 4
+=
+
2 4 3 3B :
5 5 5 2= + +
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; ;
,
... ,
(
).
.
... =
;
; : 23, (3)2, (3)3.
-
-
.
.
32 8 0= > , ( )2 23 3 9 0 = = > , ( )3 33 3 27 0 = = 0, > 0
< 0
< 0, < 0
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56.
- -
-
;
:
,
, :
+ =
.. ( ) ( ) ( ) ( )3 4 3 4 72 2 2 2 128+ = = =
,
-
:
:
= =
..6
6 5 1
5
55 5 5
5
= = =
, -
, :
( ) =
.. ( )2
2 23 4 3 4 = , ( )3
3 3 32 3 4 2 3 4 = ,
-
, : ( )
=
.. ( )3
2 2 3 63 3 3= =
.
,
.
.. 2 3 12 2 2 4 8 2 14+ + = + + = :
-
-
-
- , -
.
()=
(.)=
: =
= +
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57.
- -
-
;
;
,
,
,
:
1
=
=
,
0 1
= 0
.
;
-
. :
( )
( )
0
: 1
1
+
= =
= =
= =
= =
;
:
56.000.000.000, 0,00000000012
.
, -
.
( ) :
. 10k
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59.
- -
-
-
; - :
1
200,
21
14,
1
6
,
0 , - 2 5,
. - .
2 2 3 2
1 1 1 1 1
200 2 100 2 4 25 2 2 5 2 5= = = =
.
21 3 7
14
=
2 73
2=
1
6
6
2 5.
, -
.
,
.
1. -
.
2. :
( )
( )
0
: 1
1
+
= =
= =
= =
= =
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60.
- -
-
:
.
3
4 .
21
2
.
2
5 .
31
3
. 24 .3
2 .5
1 . 02003
. 34 4 4 4 64= =. .
2 2
2
1 1 1
2 42
= + =
=
. ( )2 2
5 5 25 = + = +
.3 3
3
1 1 1
3 273
= =
. () , -
24 16 = .
. . ( )3
2 8 = .
. ( ) ( )51 1 1 = = +
. 1,0
1= .
02003 1= .
:
. 8 10 35 5 5 .2 8 5
2 2 2
+ = :
. 8 10 3 8 10 3 215 5 5 5 5+ + = =
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61.
- -
-
. ( ) ( ) ( ) ( ) ( )2 8 5 2 8 5 152 2 2 2 2+ + = =
:
.2 3 2 3
3 3 3 3+ + .5 42 2
1 1 1 1+ +
:
. ( ) ( )2 3 2 3
3 3 3 3 9 + + = + 27 9 27+ 0=
. ( ) ( ) ( ) ( ) ( )5 42 2
1 1 1 1 1 1 1 1 3 1 2 + + = + + + = + + =
:
. 58 .3
1 .4
5 .7
12
. , . .
. , . .
. , . .
. , . .
< , > = .
.8
4 ..... 0 .7
3 ..... 0 .16
1 ..... 1
. . -
. . ( )8
4 0 >
. .
. . ( )7
3 0 < .
.( )161 1 = .
:
. 5 1
88
5
.
44 41
2 1 22
+
( ) = :
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62.
- -
-
.
5 5
5 51 1 88 8 1 1
8 8 8
5 = = = =
. ( ) ( ) ( ) ( ) ( ) ( )
444 4 41 1
2 1 2 2 1 2 2 162 2
+ = + = = +
: .2
2
10
5.
3 320 : 5
=
:
.
222
2
10 102 4
55
= = =
. ( ) ( )33
33 3
3
20 2020 : 5 4 64
55
= = = =
:
.4 3 3
4 3 3
30 100 18
15 650 +
.3 33 2 2 3
14 : 7 36 : 12 28 : 14+
-
:
.( )
( )4 3 34 3 3
34 3
4 3 3
30 100 18 30 100 182 2 3
15 50 615 650
+ = + = + =
( )16 8 27 16 8 27 51 + = + + =
. ( ) ( )( ) ( )
3 2 3333 2 2 3
3 2 3
14 36 2814 : 7 36 :12 28 : 14
127 14 + = + =
( ) ( )3 2 3
3 3214 36 28 2 3 2 87 12 14
+ = + =
9 8+ + 9= +
: .3
21
.3
32
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63.
- -
-
( )
= :
. ( ) ( )3
2 61 1 1 = = + . ( ) ( )
33 9
2 2 512 = =
:
3 2 3 7 2 6 4 : 12 +
,
, :( ) ( ) ( ) ( )[ ] ( ) ( )3 2 3 7 2 6 4 : 12 3 7 8 6 16 : 12 = + = + =
( ) ( ) ( ) ( )3 7 8 96 : 12 3 15 96 : 12 45 8 37= + + = + = + = +
:
.18
15
2
2.
28
26
4
4.
10
9
6
6
= :
.18
18 15 3
15
22 2 8
2
= = = .28
28 26 2
26
44 4 16
4
= = =
.10
10 9 1
9
66 6 6
6
= = =
:. 20 10 8 355 5 5 : 5 .
16 8 5 24 : 4 4 4
:
. ( )20 10 8 35 20 10 8 35 38 35 38 35 35 5 5 : 5 5 : 5 5 : 5 5 5 125+ + = = = = =
. ( )16 8 5 2 16 8 5 2 16 15 16 15 14 : 4 4 4 4 : 4 4 : 4 14 4 4+ + = = = = =
:
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64.
- -
-
. 3 54 x 4= . 516 x 2= .
2
31x 3
3
=
. 3 54 x 4 = . 5 3 5 3 2x 4 : 4 4 4 16= = = = .
. 516 x 2 = . 5 5 4 5 4 1x 2 :16 2 : 2 2 2 2= = = = = . 16 2.
.
2
31 x 33
=
.
2 2 23 3 3 3 2 3 2 5
2 2
1 1 3x 3 : 3 : 3 3 3 3 3 243
3 3 1
+ = = = = = = =
.
:
x 2= + y 1= :
( ) ( )[ ] ( ) ( ) ( ) ( ) ( )22 2 3 2 2 32 3x y x y 2 1 2 1 2 1 2 1+ = + + = + =
( ) ( ) ( ) ( ) ( )2 2 3
1 2 1 1 4 1 1 4 1 4 5= + + = + = = + = + x 2= y 1= + :
( ) ( )[ ] ( ) ( ) ( ) ( ) ( )22 2 3 2 2 32 3
x y x y 2 1 2 1 2 1 2 1+ = + + + = + =
( ) ( ) ( ) ( ) ( )2 2 3
1 2 1 1 4 1 1 4 3= + = + + + = =
:
x 2 x 2A 2 : 16 32 : 2 =
, x 4 .
x 4 . :4 2 4 2
A 2 :16 32 : 2+ = . 16 32 2
. :
4 2 4 5 4 2 6 4 5 2 6 4 5 2 2 3A 2 : 2 2 : 2 2 : 2 2 : 2 2 2 2 2 4 8 4+ = = = = = =
:
x y (x + y)2 x2 y3
+ 2 1
2 +1
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65.
- -
-
.10 10
5 5
. 2 34 4 . 0 110 :10
1
= :
.10
10
10 10
1 55 1
5 5 = =
.3
2 3 3 3 2 1
2 2
1 44 4 4 4 4 4
4 4
= = = = =
. 0 1 0 0 011 1
10 :10 10 : 10 : 10 10 1 10 101010 = = = = =
: , :
+ = : = .
:
.
2 31 3
3 2
.
3 43 1
:8 8
.2
2 43 3
+
+
.1
3 24 : 4
:
.
2 3 2 3 2 32 3 3 1 3
3
1 3 3 2 3 2 1 83 2 3 2 8
3 2 1 3 1 3 33
= = = = = =
:
=
.
3 4 3 4 3 4 33 4 1
3 3 4 3 3
3 1 8 8 8 8 8 1 1 1 1 1 1: : : 8 8
8 8 3 1 1 27 8 2163 3 8 3 3
= = = = = = =
. ( ) ( )[ ] ( ) ( ) ( )( )22 2 2
2 4 2 4 2 4 2 2 2 4
4
1 13 3 3 3 3 3 3
813
+ + ++ + + = = = = = = =
. ( ) ( ) ( ) ( ) ( )
11 1 1 1
3 2 3 3 2 3 2 5 5 1 5
2 5
1 1 14 : 4 4 : 4 4 4 4 4 4
10244 4
+ = = = = = = = =
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66.
- -
-
:
x 2= + :
2 2
2
1 1x 242
= = =
2 3 1 2 3 11 1 1x x x 2 2 2
x 2 2
+ + + + = + + = 1
4 92
+ + 13=
x 3= :
( )( )
23
2
1 1x 3
93
= = =
( ) ( ) ( )2 3 12 3 11 1 1 1
x x x 3 3 3 9 27x 3 3 3
+ + + = + + = + =
1
3=
19 27
3+ 18=
x 2=
( )( )
22
2
1 1x 2
42
= = =
( ) ( ) ( )2 3 12 3 11 1 1 1x x x 2 2 2 4 8
x 2 2 2
1
2
+ + + = + + = + =
=
14 8
2+ + 4=
: x 4 x 2 x 2 x 3A 3 2 3 3 + = + + , x 2 .
x 2 :
2 4 2 2 2 2 2 3 2 0 0 1
2 1
1 1 1 1 1 3 4A 3 2 3 3 3 2 3 3
9 3 9 9 93 3
+ = + + = + + = + = + = + =
x x2 2 3 11 x x xx
+
+ +
2
3
2
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67.
- -
-
:
. 68.000.000.000 . 0,00000000075
.68.000.000.000 = 68 1.000.000.000 = 68 109 6,8 1010.
.0,00000000075 = 7,5 10 10
:
. 518.000.000 0,000031 .102.000.000 : 170.000
.518.000.000 = 5,18 108
, 0,000031 = 3,1 105
.: 518.000.000 0,000031 = 5,18 108 3,1 105= 16,058 108 + (5)= 16,058 103.
.102.000.000 = 1,02 108, 170.000 = 1,7 105.
: 102.000.000 : 170.000 = 1,02 108 1,7 105 = 0,6 1013.
:
.2
84 10 .
36
3 10
.2
82 10
. ( ) ( )2 28 2 8 164 10 4 10 16 10 = =
. ( ) ( )3 3
6 3 6 183 10 3 10 27 10 = =
. ( ) ( )2 2
8 2 8 162 10 2 10 4 10 = =
:
8 8 8A 2,1 10 4, 2 10 1, 5 10 +
( )8 8 8 8 8A 2,1 10 4, 2 10 1, 5 10 2,1 4, 2 1, 5 10 4,8 10= + = + =
:
. 6,14 108 ..... 6,04 108 . 5,3 104 ..... 14,8 104
.6,14 > 6,04 6,14 108 > 6,04 108
.5,3 < 14,8 5,3 104 < 14,8 104
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68.
- -
-
6,25 105
625 108.
: 6,25 105 < 625 108 .
6,25 105 = 625 103. 625 108: 625 103 = 1 1083= 105.
6,25 105 105 .
:
.1
3.
3
20 .
3
40.
8
5
.1
0,333333 0, 33
= = .3
0,1520
= .3
0,07540
= .8
1, 65
=
1,45 .
x 1, 45= . x 1, 454545...=
100: 100 x 100 1, 454545... = 100x 145, 4545...=
: 100x 145 0, 4545...= +
x : 100x x 145 0, 4545 x = +
: ( )100 1 x 145 0,4545 1,4545... = + : 99x 145 1=
99x 144=
144x
99
=
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69.
- -
-
1. :
. ( )2
8 .3
5 .
31
3
. ( )7
2 .2
5
. ( )3
3 . 26 . ( )29 . ( )25 . ( )3
1
. 37 . ( )2
1,5 . ( )224 4 + . ( )1000
1 . 22,3
2. :
( )32 3 2
A 5 5 5 5 5= + + + +
( ) ( )5 24 5 3
B 2 2 2 2 2 2= + + +
( ) ( )3 22
8 8 8= + +
( ) ( )2 32 4
6 6 6 6=
( ) ( ) ( ) ( )8 9 105 9
1 1 1 1 1 1= + + +
3. :
. 18 9 5 63 3 3 3 . 5 17 3 64 4 4 4
. 10 9 8 38 8 8 8 . ( ) ( ) ( ) ( )7 9 4 52 2 2 2
.
10 9 20 15
1 1 1 15 5 5 5
. 7 8 5 14 206 6 6 6 6
4. > , < , = .
. ( )10
3 .... 0 . ( )25 .... 0 . ( )72 .... 0
. ( )19
1 .... 1 . ( )54 .... 0 . ( )81 ....1
. ( )5
10 .... 0 . ( )91 .... 1 . ( )47 .... 0
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70.
- -
-
5. :
.8
8 177
.5
5 144
. ( ) ( )5 5
55 1 13 2
3 2
. ( ) ( )5 5
55 1 18 2
8 2
. ( )6
66 110 110
6. :
.
4
4
300
150.
2
2
735
73,5. ( )
3 380 : 40
. ( )4436 : 12 .
( )
3
3
250
50. ( )
66500 : 250
. ( ) ( )3 3
640 : 160 . ( )22
100 : 20 . ( )3 31024 :128
7. :
( ) ( )34 4 3 2 2A 20 : 10 36 : 12 25 : 5= +
( ) ( )2 22 2 2B 845 : 84,5 90 : 9 60 : 152= +
( ) ( )2 32 3 3 3 2 2
50 : 10 16 : 8 200 : 100 1000 : 200= + +
( )
4 5 4 3
4 5 4 3
15 68 128 512
3 34 64 128= + +
( )32 2 3
2 2 3 3
805 1000 60 40
80,5 100 30 20
= + +
8. :
. ( )32
2 . ( )65
1 . ( )2
52 . ( )22
8
. ( )2
23 . ( )2
24 . ( )
75
1 . ( )2
25
9. :
( ) ( ) ( )3
3 2 6A 2 8 2 8 : 4 = +
( ) ( ) ( )1000 22 22 2B 10 3 4 5 : 5 = +
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71.
- -
-
( ) ( ) ( )[ ]23 2 4 12 8 :10 16 : 8 5 = +
( )2
22 2 2 31 5 1 45 :15 5
5
= + +
10. :
.
20
19
3
3.
18
16
5
5 .
( )
( )
17
14
5
5
.
2004
2002
7
7
.
8 51 1
:
2 2
. ( ) ( )10 8
1, 5 : 1,5 .25 23
3 3:
4 4
. 50 474 : 4
11. :
. ( ) ( ) ( ) ( )5 10 8 19
3 3 3 : 3 . 12 4 7 208 8 8 : 8
. 14 20 4 16 4 106 6 6 : 6 6 6 . ( ) ( ) ( ) ( )10 25 12 207 7 : 7 7
12. :
. 4 68 x 8 = . 10 143 x 3 = . 632 x 2 =
. 27 x 243 = . ( ) ( )8 107 x 7 = .3
2
x3
3=
.
9
31 x 22
+ =
. ( ) ( )10 12
10 x 10 = . ( ) ( )8 11
5 x 5 =
13. :
2 3
3 3
1 1 1
3 2 6A :1 2
15 5
+ =
( ) ( ) ( )
3 2 2
4 3 22
2 1 41
3 3 3B :2 41
=
14. :
18 x 14 y 10 x yA 2 : 2 128 : 2+ + + += +
20 16 x 22 y 10B 3 : 3 3 : 9 = +
( )x y10 x y x 12y 4 4 : 4 ++ + = x 2= y 1=
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72.
- -
-
15. :
.
.
16. :
. ( ) 2
4 . 4 22 4 .
2 31 5
5 3
.
2 14 1
:7 7
. ( ) 2
2 33 3 + . ( )
23
2
.2 3
1 2:
3 3
. ( )5
31
.2 2
5 :10
. ( ) 2
4 5
8 8
. ( ) 2
4 3
6 6
.
2
2 18 4
17. :
.
2 2 21500 4 1500
400 400 8
.
10 5 4 19300 300 300 300
80 80 80 80
.
4 5 8 1
1000 1000 1000 1000:60 60 60 60
18. :
. .
2 2 3 3+ 42 3
2 1
+2 3
3 2
x x3 3 x2 ( x2)3 x2 x3
2
+3
3
2 2+ 3 4
1
2
+2
3 1+ 2 3
1
2
+2
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73.
- -
-
19. :
( )2 4 42 1 1 1
33 8 2
= +
2 2 3
43 1 1 22 2 2
= + +
8 164 2
1 1
2 2
=
20. :
( )x 4 x x x 2 2 4 2+= + x 2= 4 x 1 xB 3 3 3 x = + + x 1=
( ) ( )x 1 x 2x 1
1 2 3+ = x 1=
( ) ( )x x
x x 2 x 2= + + + x 3=
21. :
. 750000000 . 81.000.000.000 . 4.320.000.000
. 33.100.000.000 .0,0000000712 .0,000000000422. 0,00000358 .0,0000000848
22. :
. 800.000.000 75.000.000 . 350.000.000 1.600.000.000
. 73.000.000 0,00000045 . 0,00000004 0,00000005
.0,000000006 : 40.000.000 .4.000.000.000 : 8.000.000
23. :
. ( )248 10 . ( )364 10 . ( )572 10
. ( ) 4
63 10
. ( ) 6
42 10
. ( )
24
5 10
24. :
9 9 9 3,5 10 4,8 10 6,9 10= + 3 3 3 5,7 10 14,6 10 2,8 10 = +
8 8 8 1,7 10 4,3 10 7,25 10=
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74.
- -
-
25.
.. 88,45 10 14845 10 . 63,2 10 81,6 10
. 72,4 10 51,2 10 . 91,8 10 79 10
. 54 10 42 10 . 86 10 101,5 10
26. Kg 3 109
4,5 1012Kg.
27. :
.1
4.
5
4 .
5
8 .
2
9
.4
3.
10
4 .
16
32.
6
20
28. :
. 0, 5 . 0, 6 . 0, 8
. 1, 5 . 1, 25 . 2,541
29. :
. 0, 5 0, 6 0, 8+ + . 1,5 1,25
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75.
- -
-
1
;
2
;
: 3 2 51,3 10 , 4 10 , 15,8 10
1
:
2 2 2 2 3 1A 20 : 5 3 5 3 3 : 25 3 = + +
( ) ( ) ( )2000 2 3
2 2 2 2 26 5 8 8 : 8
= +
2
103 m .
378 ;
3
:
. 0,18 . 0,14 . 0,544
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4 4 4 4 4
5 5 5 5 5
2
- -
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-
;
;
(). -
x.
.. 3x + 5 = 2x + 9
= ,
( 3x + 5).
= ,
( 2x + 9). x (
3x 2x).
.
, x 4,
: 3 4 + 5 = 2 4 + 9.
17 = 17. .
4 ,
4.
-
; -
.
-
( ).
.
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80.
- - -
-
-
.
.
1.
x + 8 (x + 3) + 7 = 3 (x + 2) 11
:
x + 8x + 24 + 7 = 3x + 6 11
:
x + 8x 3x = 24 7 + 6 11
:
6x = 36
:
x36
66
=
=
6.
!!!
-
.
. ,
.
2
:x 2 3x 1 8
53 2 3
+ + = +
... (2,3) = 6
:
62 x 2
3
+ 6 5 6+ =
3 3x 1
2
6+
2 8
3
( ) ( )2 x 2 30 3 3x 1 16+ + = +
-
-
x
( 6).
.
-
.
-
, -
.
-
-
-
-
.
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81.
- - -
-
:
2x 4 30 9x 3 16+ + = + :
2x 9x 4 30 3 16 = + :
7x 21 = :
21x 3
7
= =
; -
; -
.
.
0 x , 0 = .
( )2x 3 2 x 3 1+ = + , : 2x 3 2x 6 1+ = +
2x 2x 3 6 1 = + 0x 2=
0 2= -
, .
x. 0x = 0.
x 1 4 2x 95
2 4 2
= +
: x 1 4 2x 9
4 5 4 4 42 4 2
= +
( )20 2 x 1 4 2x 18 = +20 2x 2 4 2x 18 + = +
2x 2x 20 2 4 18 + = + +
0x 0=
-
-,
!
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82.
- - -
-
: 0 0= !
,
.
.
-
;
-
. :
,
.
()
-
x.
.
, -
.
, :
s
t= ,
, s
t .
s :
-
s.
. : s t= . t :
t. . :s
t
= .
: t, .
,
.
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83.
- - -
-
, -
115 . ,
5
.
;
.
x . 5
. x 5 .
.
2x .
115 .
:
( )x x 5 2x 115+ + = : x x 2x 115 5+ + = +
4x 120=
120x
4=
x 30= 30 , 25
60 .
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84.
- - -
-
:
. . . .
. 7.
. 2.
x.
. :1 x
x2 2
=
. : 6 x
. : 8 x
7 : 8x 7.
. :1
x 25
+
: . .
. .
. 2. 2 k. 2 :
2k + 2, (2k + 2) + 2
: 2k, 2k + 2 , 2k + 4
. + 1.
2k + 1. 2k + 1, :
(2k +1) + 2, (2k + 1 + 2) + 2
: 2 + 1, 2 + 3, 2 + 5
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85.
- - -
-
: 5
.
x, :1
x 52
1
3 x 52
.
, , :
. 41.
. 6 .
. x, : 41 x.
. x, : 2x + 6
:
1
4
1
9 11
x :1 1
x x 114 9
= 1 1
x x 119 4
=
:
, 1
5 .
.
90 .
180.
:1
90 x x 1805
+ + =
1x x 180 90
5+ =
1x x 90
5+ =
5x x 450+ =
6x 450=
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86.
- - -
-
450x
6=
ox 75= 75 90 75= 15.
:
. 4x 3 3 2x= . 3z 8 6z 10= . 7 2y 6y 4=
. 4x 3 3 2x
4x 2x 3 3
6x 6
6x
6
x 1
= + = +
=
=
=
. 3z 8 6z 10
3z 6z 10 8
3z 18
18z
3
z 6
+ = =
=
=
=
. 7 2y 6y 4
2y 6y 7 4
4y 3
3y
4
= + + = +
=
=
: . 3 x 4 2 x 1 4=
. 7 x 2 11 2 x 9x 1 =
. ( ) ( )3 x 4 2 x 1 4
3x 12 2x 2 4
3x 2x 12 2 4
x 10
+ = ++ = + = +
=
. ( ) ( )7 x 2 11 2 x 9x 1
7x 14 22 11x 9x 1
7x 11x 9x 14 22 1
9x 37
37x
9
= + + = ++ = + + +=
=
:
. 8x 2 3 x 1 3 2x 4 0 = . 2x 3 7 x 4 31=
. ( ) ( )8x 2 3 x 1 3 2x 4 0
8x 2 3x 3 6x 12 0
8x 3x 6x 2 3 12
x 7
7x
1
x 7
+ + =+ + = = +
=
=
=
. ( )2x 3 7 x 4 31
2x 3 7x 28 31
2x 7x 28 3 31
5x 0
0x
5
x 0
+ = ++ = + = +
=
=
=
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87.
- - -
-
!!!
() 1. ()
.
5.
. !
: x 1 x 2 5 x
142 3 4
=
... 12.
12 - :
x 1 x 2 5 x12 12 12 12 14
2 3 4
+ + + =
( ) ( ) ( )6 x 1 4 x 2 3 5 x 168+ + + = 6x 6 4x 8 15 3x 168+ + + + = 6x 4x 3x 168 6 8 15+ + = + 13x 169=
13 : x 13= 13.
: . 2x 4 x 1 3 2x 1 5 =
. 11x 8 x 2 5x 3 14=
. ( ) ( )2x 4 x 1 3 2x 1 5
2x 4x 4 6x 3 5
2x 4x 6x 4 3 5
0 x 2
0 2
+ = + + = +
+ = + + ==
. ( )11x 8 x 2 5x 3 14
11x 8 x 10x 6 14
11x x 10x 8 6 14
0 x 0
0 0
+ = + ++ = + +
= + ==
. x
:x 3 x 1 2
5 3 15
=
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88.
- - -
-
... 15.
15 -
:
153 x 3
5
15
5 x 1
3
+ 15=
2
15
( ) ( )3 x 3 5 x 1 2 + = 3x 9 5x 5 2 = 3x 5x 9 5 2 = + + 2x 16 =
2 :16
x2
=
x 8= 8.
: .y 3 y 5 1 y
2 6 2 3
=
.
10 5 8
35 10 5
=
. ... 6.
6 -
:
63 y 3
62
y 56
6
=
3 16
2 +
2 y
3
( ) ( )3 y 3 y 5 3 1 2y = +
3y 9 y 5 3 2y + = +
3y y 2y 9 5 3 = +
0y 7=
0 7= .
. ... 10.
10
:
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89.
- - -
-
102 10
5
+ 10+
5
10
10=
2 8
5
10 3+
( ) ( ) ( )2 10 5 2 8 30+ + = + 2 20 5 16 2 30+ + = + 2 2 20 5 16 30+ + = + + + 5 31=
5 :31
5
=
31
5
.
:7x 3 1 3 6x 5 3x 2
14 7 2 7
=
... 14.
14 -
:
14 7x 3 1414
+2
1 147
= ( )7
3 6x 5 142
+2
3x 27+
( ) ( ) ( )7x 3 2 1 7 3 6x 5 2 3x 2 + = + +
( )7x 3 2 21 6x 5 6x 4 + = + + 7x 3 2 126x 105 6x 4 + = + + 7x 126x 6x 3 2 105 4 = + 125x 100 =
125 : 100x
125
=
4x
5=
4
5.
:
11 x2xx 7
32 2
5 10 5
=
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90.
- - -
-
... 10.
10 -
:
102
1x
2 105
+
12x
3 1010
+ =
2
x7
2
5
+
1 1 x
2 x 2x 2 72 3 2
+ + = +
1 1 x
2x 2 2x 2 2 72 3 2 + + = +
12x 1 2x x 14
3 + + = +
1
2x 2x x 1 143
+ = +
44
3x3
=
3 :
443x3
= 44
x9
=
44
9.
3 9 x 17= , x
. .
( )3 9 x 17 = . x, 3 9.
0 x 17 = . : 3 9 0 =
3 9=
9
3=
3=
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91.
- - -
-
, :
. 3x 2 4 6x= . 8x 4 11 x=
. 3x 2 4 6x = + 3x 6x 4 2 = + ( )3 6 x 4 2 = + 0 x 0 = . :
3 6 0 = 4 2 0+ =
3 6= 4 2=
6
3
= 2
4
=
2= 1
2
=
. ( )8x 4 11 x 8x x 11 4 8 x 11 4+ = + = =
. , -
:
8 0
8
==
11 4 0
11 4
411
==
=
5x 4 3x 2x 8 = . ,
:
2 1 5 2A 2 3 8 =
( )5x 4 3x 2x 8 = + . :
( )5x 4 3x 2x 8
= + 5x 4 3x 2x 8 + = + 5x 3x 2x 4 8+ = + 6x 12=
12
x6
=
x 2=
2. = 2. , , -
2 :
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92.
- - -
-
( ) ( ) ( )2 2 1 5 22A 2 2 2 3 2 2 8 2
= + + =3 5 2
4 2 1 4 6 64 2 1 4 36 64 2 4 36 30= + = + = + =
, 1
E 2
= ,
. .
:
.
1E 2=
2 2= 1
2
2 =
2 =
2
=
PV = nRT . :
. . V . R .
.nRT
V
= .nRT
VP
= .PV
RnT
= .PV
TnR
=
:
2E 2 . .
2E 2 = +
22 = 22 =
2
2
=
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93.
- - -
-
180
= .
.
.
= = . :
180
180
180
=
==
180
180180
=
==
;
x. x.
, :
x xx x 0
2x 0
0x
2
x 0
= + ==
=
=
,
.
7
3.
x .
: : 3 x
7 : 3x 7
: 2 x
3 : 2x + 7
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94.
- - -
-
: 3x 7 2x 3 = + .: 3x 2x 7 3 = + x 10= 10.
15
2
13
3.
, .
x .
:
15 x 13 x
2 3
=( ) ( )3 15 x 2 13 x =
45 3x 26 2x = 3x 2x 26 45 + = x 19 =
x 19= 19.
, -
4. 42cm.
.
x 4x 4. 42cm. :
+ + + = 42
4x 4 x 4x 4 x 42 + + + =10x 42 8= +
10x 50=
x 5= x = 5 cm 4x 4 4 5 4 16 cm = = .
17%. 86 .
;
x . 17
x100
.
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95.
- - -
-
, :17
x x
100
.
:17
x x 86100
=
100x 100 17
100x 86 100=
100x 17x 8600 =83x 8600=
8600x
83
=
x 103,6
103,6 .
. .
.
. 3220 . ;
x . x2
-
x
3. , :
x xx 3220
2 3 =
6 x 6 3 x
62
2 x
6 32203
=
6x 3x 2x 19320 =x 19320=
19320 .
9
17
6
5.
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96.
- - -
-
x . :
9 x 6
17 x 5
+=
+
( ) ( )5 9 x 6 17 x+ = +45 5x 102 6x+ = +5x 6x 102 45 =
x 57 =x 57=
57.
.
7 -
4. .
x.
2x + 7 3x 4 .
360. :
( ) ( )x x 2x 7 3x 4 360+ + + + =x x 2x 3x 7 4 360+ + + = + +
7x 357=
357x
7=
ox 51=
: 51.
: 2 51 + 7 = 109
: 3 51 4 = 149
144 ,
.
x, 144 x.
: ( )8x 10 144 x= 8x 1440 10x= 8x 10x 1440+ =
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97.
- - -
-
18x 1440=
1440x18=
x 80= 0 80 64.
80 . 3
. 1 .
192 . ;
x . , 80 x . 3x.
1(80 x). : ( )3x 1 80 x .
: ( )3x 1 80 x 192 =3x 80 x 192 + =4x 192 80= +
272x
4=
x 68=, 68 12 .
40Km/h. 4 -
70Km/h. ;
x .
x + 4 . ( )x 4 40 Km+ .
x . x 70Km .
. : ( )40 x 4 70x+ =40 x 160 70x+ =70x 40x 160 =30x 160=
160x
30=
x 5, 33=
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98.
- - -
-
5,33 .
40cm.
5.
.
x . x
52
+ .
40cm, :x
x x 5 402
+ + + =
2x 2x 2+ + x
2 2 5 2 40+ =
2x 2x x 10 80+ + + =5x 80 10= 5x 70=x 14 cm=
14cm :
14
5 7 5 12 cm2 + = + =
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99.
- - -
-
1. :
. 9.
. 13.. .
2. :
. 4.
. 7.
3. :
137
81 .
4. :
1
7
11.
5. :
30
.
.
6. :
. 2x 5 x 1+ = . 3y 11 13y 21+ = + . 6 2 7 4 = +
7. :
. ( )4x 5 2 x 4 6x 3 = + + . ( ) ( )2 x 1 5x 7 3 x 11 + = +
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101.
- - -
-
18. , :
. 3x 5 7x 10+ = + . 11 12x 1 x5 3
=
19. ( )3 30 x 6 18 = + .
. -
: ( ) ( )3 10 2 5 71 6
+ = + + +
20. :2x 1 2x 7 3x 2 1
3 6 4 6
+ + = +
, :
( ) ( ) ( )4
4 A 2 1 7 4 3 1 50
= + +
21.
:21s t
2= . :
. . t2
22. h :
E mgh= , g m . :
. m . g . h
23. , q Q. r, :
2
qQF
r= . q.
24. x, y, z V xyz= (1) E 2xy 2xz 2yz= + + (2). (1) y z.
(2) x.
25. 5
17.
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102.
- - -
-
26. 9
5
8
13.
.
27. 2m.
10m. 40m2,
.
28. , ,
5 .
1. 107 .
.
29. 330 3
5.
30. ,
2,7. 43 cm.
.
31. 528 8% .
, ;
32. :
. 92
. 64
33. 17 . 10
50 . 6 50 .
10 50 .
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103.
- - -
-
1
;
;
2
;
;
,
;
1
: x 5 2x 5 9 x 1
10 5 5 10
+ + = +
2
: ( ) ( ) ( ) ( )7 1 3x 2 5x 13 20 x 5 3 4x 7 = + +
3
. B
18 . -
1. .
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6 6 6 6 6
7 7 7 7 7
3
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. (..).
. .. ;
. x
.
. :
-
. :
2= 2+ 2
.
,
.
. .. : 2 2 2
2
2
x 6 10
x 36 100
x 64x 8
+ =
+ =
=
=
. .. .
. .. ;
. 6 cm, 7 cm, 9 cm
.
.. :
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126.
-
-
, -
.
2= 2+ 2 oA 90= .
. ..
,
.
.
.. :
2 2 2
9 6 7= + 81 36 49= + 81 85= .
. -
;
. ;
.
. :
1. 36 ......= 0,36 ......= 3600 ......=
2. 0 ......= 1 ......= ( )2
......=
. -
x ,
.
: x= 2
x = , 0> , x 0>: 0 0= .
.
.
. 1. 36 6= 0, 36 0, 6= 3600 60=
2. 0 0= 1 1= ( )2
= , > 0
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127.
-
() () :
. oB 90 2= 22.
. AB
2= 2 2, o 90 .
. x, y, :
2 2 2x y 2 2 2y x
.(), oB 90= .. 2= 2 + 2 2= 22.
.(), 2= 2 2 2 = 2+ 2 o 90= .
. (), 2 2 2x y = + , ..,
x 2 2 2
y x = + , y .
.
.
: . x .
. y .
. .
. x
.. :
2 2 2x 3 4= + 2
x 9 16= + 2x 25= x 25= x 5=
. y
A x 5= = = .
.. : 2 2 2 = + 2 2 2
y x x= + 2 2 2y 5 5= +
2y 25 25= + 2y 50= y 7, 07
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128.
-
.
2E x 25= = ( . )
36 cm
10 cm. :
. A .
. .
.
36 cm. : AB 36+ + =
10 10 36+ + = 20 36+ = 36 20= 16cm=
: 16 8 cm
2= =
.. :
2 2 2 + =
2 2 2 8 10+ =
2 100 64= 2 36= 6 cm=
.
: 2 16 6 96 48 cm2 2 2 2 = = = = =
= 10cm = 6cm.
: . ,
. ,
. .
. .. :2 2 2
+ = 2 2 2
6 10+ = 2 36 100+ = 2 100 36=
2 64= 64= 8cm= .
. :
2 8 6 48E 24 cm2 2 2 2
= = = = =
. :
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129.
-
E
2
=
B 24
2
=
10 24
2
= 10 24 2= 10 48=
48
10
=
4, 8 cm=
= 8 cm,
= = 10 cm = 20 cm. :
. .
. .
. . -
: = = 8 cm.