यदि $f(x) = 2 \sin^{-1} \sqrt{1-x} + \sin^{-1} (2 \sqrt{x(1-x)})$ जहाँ $x \in (0, 1/2)$ है,तो $f'(x)$ का मान किसके बराबर है?

  • A
    $\frac{2}{\sqrt{x(1-x)}}$
  • B
    $0$
  • C
    $-\frac{2}{\sqrt{x(1-x)}}$
  • D
    $\pi$

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