a) If z = x + iy, find the values of x and y that satisfy the equation: 2z 2z 1+ i9 i 2 – i7 | b) Given that z = 4 cos + i sin and w = (1-2i)3 37 1 Find 4 (i) A (ii) arg

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 50E
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Question
a)
If z = x + iy, find the values of x and y that satisfy the
equation:
2z
2z
-
1 + i9
i
2 – i7
4 cos+i sin and w =
(1–2i)3
1
b) Given that z =
cos
4
Find
4
(1) A
(i)
(ii) arg
||
Transcribed Image Text:a) If z = x + iy, find the values of x and y that satisfy the equation: 2z 2z - 1 + i9 i 2 – i7 4 cos+i sin and w = (1–2i)3 1 b) Given that z = cos 4 Find 4 (1) A (i) (ii) arg ||
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