MCQ
यदि $\mathrm{A}+\mathrm{B}+\mathrm{C}=$ ग हो, तो $\tan \left(\frac{A+B}{2}\right)$ का मान है-
- Atan C
- B$\tan \frac{C}{2}$
- ✓$\cot \frac{C}{2}$
- D- cot C
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