Solved: Horizontal Tangent Line Determine the point(s) in the interval at which the
Chapter 3, Problem 123(choose chapter or problem)
Horizontal Tangent Line Determine the point(s) in the interval \((0,2 \pi)\) at which the graph of \(f(x)=2 \cos x+\sin 2 x/) has a horizontal tangent.
Text Transcription:
(0,2pi)
f(x)=2 cos x+sin 2x
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