Let Z₁ = 6(cos(72) 7π -54 Z1Z2 = Z1 = Z2 + i sin (77)) and Z₂ = X 9(cos(55) + i sin (57)). Find Z₁Z2 and (Enter your answers in a + bi form.)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 48E
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Let z1 = 6(cos(7pi/12) + i sin(7pi/12)) and z2 = 9(cos(5pi/12) + i sin(5pi/12)).

Find z1z2 and z1/z2.(Enter your answers in a + bi form.)

Let Z₁ = 6 cos
=
Z1Z2 =
Z1
Z2
6(cos(77) + i sin (77)) and 22 = 9(cos(57)
12
12
-54
=
X
sin(577)).
12
+ i sin
Find Z₁22 and 1. (Enter your answers in a + bi form.)
Z2
Transcribed Image Text:Let Z₁ = 6 cos = Z1Z2 = Z1 Z2 6(cos(77) + i sin (77)) and 22 = 9(cos(57) 12 12 -54 = X sin(577)). 12 + i sin Find Z₁22 and 1. (Enter your answers in a + bi form.) Z2
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