$\Delta ABC$ માં,$\frac{\cos A}{a} + \frac{\cos B}{b} + \frac{\cos C}{c} = $

  • A
    $\frac{a^2 + b^2 + c^2}{abc}$
  • B
    $\frac{a^2 + b^2 + c^2}{2abc}$
  • C
    $\frac{2(a^2 + b^2 + c^2)}{abc}$
  • D
    $a^2 + b^2 + c^2$

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