x2 t01 07 locus & complex nos 1 (2013)
TRANSCRIPT
Locus and Complex Numbers
Locus and Complex NumbersCircles
y
x
R
R
R
R
2Rzz
Locus and Complex NumbersCircles
y
x
R
R
R
R
Rz or
2Rzz
Locus and Complex NumbersCircles
y
x
Ry
xR
R
R
Rz or
2Rzz
R
2Rzz
Locus and Complex NumbersCircles
y
x
Ry
xR
R
R
Rz or
2Rzz
R
Rz or
2Rzz
e.g. (i) Express these circles in terms of z
16 a) 22 yx
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx523 iz
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx523 iz
252323 iziz
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx523 iz
252323 iziz(ii) Find the centre and radius of;
25 a) iz
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx523 iz
252323 iziz(ii) Find the centre and radius of;
25 a) iz 5,1 :centre
units 2 :radius
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx523 iz
252323 iziz(ii) Find the centre and radius of;
25 a) iz 5,1 :centre
units 2 :radius
4944 b) iziz
e.g. (i) Express these circles in terms of z
16 a) 22 yx4z
16zz
01246 b) 22 yxyx1246 22 yyxx
2523 22 yx523 iz
252323 iziz(ii) Find the centre and radius of;
25 a) iz 5,1 :centre
units 2 :radius
4944 b) iziz 14:centre ,
units7:radius
izz 23 c)
izz 23 c)
izz 23
2222 1299 yxyx
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
85
41
21 22 yyxx
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
85
41
21 22 yyxx
6445
81
41 22
yx
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
85
41
21 22 yyxx
6445
81
41 22
yx
81
41 :centre ,
units 8
53 :radius
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
85
41
21 22 yyxx
6445
81
41 22
yx
81
41 :centre ,
units 8
53 :radius
02d) zzzz
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
85
41
21 22 yyxx
6445
81
41 22
yx
81
41 :centre ,
units 8
53 :radius
02d) zzzz0422 xyx
42 22 yx
izz 23 c)
izz 23
2222 1299 yxyx124499 2222 yyxxyx
52848 22 yyxx
85
41
21 22 yyxx
6445
81
41 22
yx
81
41 :centre ,
units 8
53 :radius
02d) zzzz0422 xyx
42 22 yx 02:centre ,
units2:radius
Lines
Lines y
x
c
cz Im
Lines y
x
y
x
c
cz Im
k
kz Re
Lines y
x
y
x
c
cz Im
k
kz Re
y
x
Lines y
x
y
x
c
cz Im
k
kz Re
y
x
1
2
Lines y
x
y
x
c
cz Im
k
kz Re
y
x 21 zz
1
2
izizge 21..
2222 1211 yxyx
izizge 21..
2222 1211 yxyx12441212 2222 yyxxyyxx
izizge 21..
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
izizge 21..
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
1,2and1,1 ofbisector OR
izizge 21..
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
1,2and1,1 ofbisector OR
0,21
211,
221M
izizge 21..
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
1,2and1,1 ofbisector OR
0,21
211,
221M
izizge 21..
32
2111
m
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
1,2and1,1 ofbisector OR
0,21
211,
221M
23 is slope required
izizge 21..
32
2111
m
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
1,2and1,1 ofbisector OR
0,21
211,
221M
23 is slope required
21
230 xy
izizge 21..
32
2111
m
2222 1211 yxyx12441212 2222 yyxxyyxx
0346 yx
1,2and1,1 ofbisector OR
0,21
211,
221M
23 is slope required
21
230 xy
izizge 21..
32
2111
m
03462332
yx
xy
izizii 42Sketch
izizii 42Sketch y
x-2
4
1
izizii 42Sketch y
x-2
4
1
izizii 42Sketch y
x-2
4
1
Rays
y
x
izizii 42Sketch y
x-2
4
1
Rays
y
x
zarg
izizii 42Sketch y
x-2
4
1
Rays
y
x
zarg
y
x
izizii 42Sketch y
x-2
4
1
Rays
y
x
zarg
y
x
zarg
4arg0 and 1 e.g.
zz
4arg0 and 1 e.g.
zz
y
x
1
1
-1
-1
1z
4arg0 and 1 e.g.
zz
y
x
1
1
-1
-1
1z
4
4arg
z
0arg z
4arg0 and 1 e.g.
zz
y
x
1
1
-1
-1
1z
4
4arg
z
0arg z
4arg0 and 1 e.g.
zz
y
x
1
1
-1
-1
1z
4
4arg
z
0arg z
Patel: Exercise 4M; 1ac, 2bd, 3, 4, 5bd, 6
Patel: Exercise 4N; 1a to j, 2ace, 3ace etc, 4ace
Cambridge: Exercise 1F; 1 to 5 ace etc, 6, 7 ac, 8