The graph of y cos x ln cos 2 x has seven horizontal tangent lines on the interval 0, 2 Find the approximate x coordinates of all points at which these tangent lines occur ...

We have This quantity is zero when sin x 0 or 2 lncos 2 x 0 and the lat ...

The graph of y = cos x ln cos 2 x has seven horizontal tangent lines

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The graph of y = cos x • ln cos² x has seven horizontal tangent lines on the interval [0, 2π]. Find the approximate x-coordinates of all points at which these tangent lines occur.

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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Question Posted: Feb 13, 2019 09:20 AM

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The graph of y = cos x ln cos 2 x has seven horizontal tangent lines

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We have This quantity is zero when sin x 0 or 2 lncos 2 x 0 and the lat...View the full answer

Calculus Early Transcendentals

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