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I want this question solution it`s urgentsinx + sin2x + sin3x are in AP, if

I want this question solution it`s urgentsinx + sin2x + sin3x are in AP, if

Grade:11

1 Answers

Laltesh Singh
50 Points
6 years ago
sinx + sin2x + sin3x = 0sinx + sin3x + sin2x = 02sin2x cosx + sin2x = 0sin2x ( 2cosx + 1) =0sin2x = 0. or cosx = -1/2

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