Approximate (a) cos 0.8 and (b) cos 1/2 using the linear approximation technique

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 32E
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Approximate (a) cos 0.8 and (b) cos 1/2 using the linear approximation technique

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