Solve and , and show that their solutions are…

MATHEMATICS · Subjective · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Solve sin⁡x=0\sin x=0 and sin⁡xcos⁡x2cos⁡3x2=0\frac{\sin x}{\cos\frac{x}{2}\cos\frac{3x}{2}}=0, and show that their solutions are different.

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