समाकलन ज्ञात कीजिए: $\int \frac{dx}{\sin x + \sin 2x}$

  • A
    $\frac{1}{6} \log (1-\cos x) + \frac{1}{2} \log (1+\cos x) + \frac{2}{3} \log |1+2 \cos x| + c$
  • B
    $\frac{1}{6} \log (1-\cos x) - \frac{1}{2} \log (1+\cos x) - \frac{2}{3} \log |1+2 \cos x| + c$
  • C
    $\frac{1}{6} \log (1-\cos x) + \frac{1}{2} \log (1+\cos x) - \frac{2}{3} \log |1+2 \cos x| + c$
  • D
    $\frac{1}{6} \log [(1-\cos x)(1+\cos x)|1+2 \cos x|] + c$

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