Proposition: If z and w are nonzero complex numbers, then log zw = log z + log w. (a) How is this equality to be interpreted? (b) Why is it necessary that we specify how this equality is to be interpreted? (c) How do we know that ln |zw| + i arg zw = ln |z| + i arg z + ln |w| + i arg w?
Proposition: If z and w are nonzero complex numbers, then log zw = log z + log w. (a) How is this equality to be interpreted? (b) Why is it necessary that we specify how this equality is to be interpreted? (c) How do we know that ln |zw| + i arg zw = ln |z| + i arg z + ln |w| + i arg w?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 62E
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Question
answer the questions which follow:
Proposition: If z and w are nonzero
(a) How is this equality to be interpreted?
(b) Why is it necessary that we specify how this equality is to be interpreted?
(c) How do we know that ln |zw| + i arg zw = ln |z| + i arg z + ln |w| + i arg w?
(d) Is it always true that Log zw = Log z + Log w?
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