$\int \cos x \sqrt{4 - \sin^2 x} \; dx = $

  • A
    $\frac{1}{2} \sin x \sqrt{4 - \sin^2 x} - 2 \sin^{-1} \left( \frac{1}{2} \sin x \right) + c$
  • B
    $\frac{1}{2} \sin x \sqrt{4 - \sin^2 x} + 2 \sin^{-1} \left( \frac{1}{2} \sin x \right) + c$
  • C
    $\frac{1}{2} \sin x \sqrt{4 - \sin^2 x} + \sin^{-1} \left( \frac{1}{2} \sin x \right) + c$
  • D
    इनमें से कोई नहीं

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