$(0, \infty)$ पर $\int \sin (\sqrt{k}) \, dk$ का मूल्यांकन करें।

  • A
    $2[\cos (\sqrt{k})-\sqrt{k} \sin (\sqrt{k})]+c$
  • B
    $2[\cos (\sqrt{k})+\sqrt{k} \sin (\sqrt{k})]+c$
  • C
    $2[\sqrt{k} \cos (\sqrt{k})-\sqrt{k} \sin (\sqrt{k})]+c$
  • D
    $2[\sin (\sqrt{k})-\sqrt{k} \cos (\sqrt{k})]+c$

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