Using identities Use the identity sin 2x = 2 sin x cos x to findd/dx(sin 2x). Then use the identity cos 2x = cos2 x - sin2 x toexpress the derivative of sin 2x in terms of cos 2x.
Using identities Use the identity sin 2x = 2 sin x cos x to findd/dx(sin 2x). Then use the identity cos 2x = cos2 x - sin2 x toexpress the derivative of sin 2x in terms of cos 2x.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section4.2: The Natural Exponential Function
Problem 18E
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Using identities Use the identity sin 2x = 2 sin x cos x to find
d/dx
(sin 2x). Then use the identity cos 2x = cos2 x - sin2 x to
express the derivative of sin 2x in terms of cos 2x.
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