Question: answer Which is not equivalent to cos 2x? a) 2 cos x - 1 O b) 2 sinxcosx O c) 1- 2 sin? x O

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answer Which is not equivalent to cos 2x? a) 2
Which is not equivalent to cos 2x? a) 2 cos x - 1 O b) 2 sinxcosx O c) 1- 2 sin? x O d) cos x - sin x

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