Identify the common factor that can be taken out from the expression while solving…

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Identify the common factor that can be taken out from the expression 2sin⁡xcos⁡x+cos⁡x2\sin x\cos x + \cos x while solving the equation 2sin⁡xcos⁡x+cos⁡x=02\sin x\cos x + \cos x = 0. (a) 2cos⁡x2\cos x (b) cos⁡x\cos x (c) sin⁡x\sin x (d) sin⁡xcos⁡x\sin x\cos x

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