$\int \cos \sqrt{x} \, dx$ का मान ज्ञात कीजिए।

  • A
    $2 \sqrt{x} \sin \sqrt{x} + 2 \cos \sqrt{x} + c$
  • B
    $2 \sqrt{x} \sin \sqrt{x} + 2 \sin \sqrt{x} + c$
  • C
    $2 \sqrt{x} \sin \sqrt{x} - 2 \cos \sqrt{x} + c$
  • D
    $\sqrt{x} \cos \sqrt{x} - 2 \sin \sqrt{x} + c$

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