Prove that for all real x and y(a) | cos x – cos y| < |x – yl.(b) | sin x – sin yl < |x – yl.

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Answered: Prove that for all real x and y (a) |…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section6.6: Additional Trigonometric Graphs

Problem 77E

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Prove that for all real x and y (a) | cos x – cos y| < |x – yl. (b) | sin x – sin yl < |x – yl.