$\int_{0}^{\frac{\pi}{2}} \left( \frac{1 + \sin 3y}{1 + 2\sin y} \right) dy$ का मान किसके बराबर है?

  • A
    $\frac{\pi}{2}$
  • B
    $\frac{1}{2}$
  • C
    $\frac{\pi}{4}$
  • D
    $1$

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