$\int_0^{\pi / 4} \frac{\sin x+\cos x}{7+9 \sin 2 x} d x$ का मान ज्ञात कीजिए।

  • A
    $\frac{\log 3}{4}$
  • B
    $\frac{\log 3}{36}$
  • C
    $\frac{\log 7}{12}$
  • D
    $\frac{\log 7}{24}$

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