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4 (Binomial Theorem)

4 (Binomial Theorem)1(Binomial Theorem

(Binomial Theorem)

1. 2. 3. 4.

(a b) a , b n n 4.1 (Factorial)

n n!

n n n! = n(n-1)(n-2)(n-3)..3.2.1

4.1

1) 4!

2) 7!

3) 10!

1) 4! = 4 3 2 1 = 24

2) 7!= 7 6 5 4 3 2 1= 5,040

3) 10!= 10 9 8 7 6 5 4 3 2 1 = 3,628,800

n! n

n!=n(n-1)!

=n(n-1)(n-2)!

=n(n-1)(n-2)(n-3)!

=n(n-1)(n-2)(n-3)(n-4)!

n!=n(n-1)!

n= 1 ;

1!=1(1-1)!

1=1(0!)

0!=1

4.2 1)

2)

1)

=

= 42

2)

=

=

4.3 1)

2)

1)

=

=

=

=

=

2)

=

=

=

4.4

n = 5

=

=

=

=120

4.5

=30 n

= 30

=30

(n+2)(n+1)=30

(n+2)(n+1)=(6)(5)

;

n=4

4.6 1) 1211 10

2) 27

3) n- 5n + 6

4) (2n+2)(2n+1)(2n)

1) 1211 10

=

=

2) 27

=

=

3) n- 5n + 6

= ( n-2)(n-3)

=

=

4) (2n+2)(2n+1)(2n)=

=

4.11. 1.1 8!= . .. ..1.2 = .. ..1.3 ..1.4 .. .. ..1.5 .. ..2. 2.1 . ... ... .2.2 . ... ... ...2.3 n = 8

. ... ... .2.4 n = 7

. ... ... .3. n 3.1

= 930

...... ...3.2 = 132

...... ...3.3

= 16

...... ...4. 4.1 65 64 ..

4.2 13 .

4.3 (n+5)

4.4 (2n-5)(2n-6)(2n-7) ..

4.5 n+ 30 .

4.2 (Binomial Coeficient)

n , r nr

n , r 0 =

4.7 1)

4)

2)

5)

3)

1)

=

=

=

= 20

2)

=

=

=

= 21

3)

=

=

=

=

= 21

4)

=

=

= 1

5)

=

=

=

= 1

=

=

=

4.8

=15 n

= 15

=15

= 15

= 15

n(n-1)(n-2)(n-3)

=15( 4321)

n(n-1)(n-2)(n-3)

=(35)( 4321)

n(n-1)(n-2)(n-3)

=(32)(5)(4)(3)(2)

;

n=6

4.9 +-

+-

= +-

= +-

= +-

=+-

= 126 + 210 10

= 137

4.2

1. 1.1 ..

..

1.2 .

..

1.3 .

..

2. +-

..................

3. = 56 n

..................

4.

EMBED Equation.3 +

EMBED Equation.3 +

EMBED Equation.3 ..................5. ....6. = 2 n

..................7. =

EMBED Equation.3 n

..................

4.3 (Pascals Triangle)

Blaise Pascal

EMBED Equation.3

4.3.1 4.3.2 1

4.3.3 2

4.3.4 n n + 1

4.3.5 n

(1) (2) () () - 0

- 1

- 2

.

- 0

0

0

(3)

(4)

(5) 4.4

4.10

(a) = x (b) = 2y ;

(x+2y)= (x)+(x)(2y)+(x)(2y)+(x)(2y)+x(2y)+(2y)

=

=

=

4.11

=

= 16a

EMBED Equation.3 (9y)

=

=

4.12 4

4.13

24-3r=0

24 = 3r

=r

8=r

8 + 1 9

4.13

4 7

4.15

a = x b = (3x 1) ;

= x

EMBED Equation.3 x(3x-1) + x(9x- 6x + 1)

+ (3x)+3(3x)(-1)+3(3x)(-1)+(-1)

4.16 4

= (3+0.02)

EMBED Equation.3

EMBED Equation.3

EMBED Equation.3

EMBED Equation.3

+0.00000016

= 0.83.1817

(3.02) = 83.1817

6.3

1.

............2.

.............3. 4

.......4.

5.

..........6.

..............********************** ***************** n r EMBED Equation.3

EMBED Equation.3

EMBED Equation.3

EMBED Equation.3

EMBED Equation.3 EMBED Equation.3

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