$\mathop {\lim }\limits_{x \to 0} \frac{{1 - \cos (1 - \cos x)}}{{x\tan x - {x^2}}}$ का मान ज्ञात कीजिए।

  • A
    $-\frac{8}{3}$
  • B
    $-\frac{3}{8}$
  • C
    $\frac{3}{8}$
  • D
    $\frac{8}{3}$

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