Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.5: Rational Functions
Problem 48E
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Question
if f(x)=cospix, find the extact value of a such that f(1)-f(-1)/1-(-1)=cos a.
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