यदि $M = \int_{0}^{\pi / 2} \frac{\cos x}{x+2} dx$ और $N = \int_{0}^{\frac{\pi}{4}} \frac{\sin x \cos x}{(x+1)^{2}} dx$ है, तो $M-N$ का मान ज्ञात कीजिए।

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

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