यदि $A + B + C = 180^o$ है,तो $\cot \frac{A}{2} + \cot \frac{B}{2} + \cot \frac{C}{2}$ का मान क्या होगा?

  • A
    $\cot \frac{A}{2} \cot \frac{B}{2} \cot \frac{C}{2}$
  • B
    $2 \cot \frac{A}{2} \cot \frac{B}{2} \cot \frac{C}{2}$
  • C
    $4 \cot \frac{A}{2} \cot \frac{B}{2} \cot \frac{C}{2}$
  • D
    $8 \cot \frac{A}{2} \cot \frac{B}{2} \cot \frac{C}{2}$

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