Suppose z = a+ bi, w = u + iv, and

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.9: Properties Of Determinants
Problem 42E
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Exercise 1.10 Suppose z = a + bi, w = u+ iv, and
1/2
b =
|w|
a =
Prove that z2 = w if v > 0 and that (z)² = w if v < 0. Conclude that every
complex number (with one exception) has two complex square roots.
Transcribed Image Text:Exercise 1.10 Suppose z = a + bi, w = u+ iv, and 1/2 b = |w| a = Prove that z2 = w if v > 0 and that (z)² = w if v < 0. Conclude that every complex number (with one exception) has two complex square roots.
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