$\int \frac{\sin 2x}{4 \sin^2 x + 9 \cos^2 x} \, dx = $ (जहाँ $C$ समाकलन का एक स्थिरांक है)।

  • A
    $-\log(4 \sin^2 x + 9 \cos^2 x) + C$
  • B
    $\frac{1}{5} \log(4 \sin^2 x + 9 \cos^2 x) + C$
  • C
    $-\frac{1}{5} \log(4 \sin^2 x + 9 \cos^2 x) + C$
  • D
    $\log(4 \sin^2 x + 9 \cos^2 x) + C$

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