∆ABC এ \( \tan \frac{(B+C)}{2} \) এর মান কত?

A \( -\cot \frac{A}{2} \)

B \( \tan \frac{A}{2} \)

C \( \cot \frac{A}{2} \)

D \( -\tan \frac{A}{2} \)

Solution

Correct Answer: Option C

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