Question:medium

$4 \cos\frac{70}{2}\cos\frac{30}{2} - \sin 50 =$

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Be aware that questions in exams can sometimes have typos. If your correct simplification doesn't match any option, double-check your work, and then consider simplifying the options to see if you can find a match, which might reveal the intended question.

Updated On: Mar 30, 2026

$\sin 100 + \sin 70 - \sin 30$
$\sin 100 + \sin 70 - \sin 50$
$\sin 100 + \sin 70 + \sin 30$
$\sin 100 + \sin 70 + \sin 50$

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The Correct Option is C

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