5. Let z1 = a1 + b;i and z2 = az + bzi. (a) Find Im[z,Zz + (Z)? – 2,7 ]. (b) Prove that (z)² = z,² .

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 78E
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5. Let z1 = a1 + bịi and z2 = az + bzi.
(a) Find Im[z,Zz + (Z)? – z,7 ].
(b) Prove that ( z)² = z,² .
Transcribed Image Text:5. Let z1 = a1 + bịi and z2 = az + bzi. (a) Find Im[z,Zz + (Z)? – z,7 ]. (b) Prove that ( z)² = z,² .
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