Explanation Given: cos ( 2 tan − 1 x ) Concept Used: cos 2 θ = 1 − tan 2 θ 1 + tan 2 θ Calculation: Let, tan θ = x o r , θ = tan − 1 x Therefore, cos ( <

6th Edition

ISBN: 9781465208880

Author: SMITH KARL J, STRAUSS MONTY J, TODA MAGDALENA DANIELE

Publisher: Kendall Hunt Publishing

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Chapter 1, Problem 46SP

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To find:Simplification of cos(2tan−1x)

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Chapter 1, Problem 45SP

Chapter 1, Problem 47SP

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Chapter 1 Solutions

Calculus

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Simplification of cos ( 2 tan − 1 x )

Solution Summary: The author explains that lmathrmtantheta =x, or, the inverse is true.

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To find:Simplification of cos(2tan−1x)

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Chapter 1 Solutions