Q/ show that: cosz-o if and only if z = (1/2)+k

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.5: The Binomial Theorem
Problem 13E
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Q/ show that: cosz-o if and only if z = (1/2)+k
Transcribed Image Text:Q/ show that: cosz-o if and only if z = (1/2)+k
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