यदि $\int f(x) \sin x \cos x \, dx = \frac{1}{2(b^2 - a^2)} \log(f(x)) + c$ है,तो $f(x) = $

  • A
    $\frac{1}{a^2 \sin^2 x + b^2 \cos^2 x}$
  • B
    $\frac{1}{a^2 \sin^2 x - b^2 \cos^2 x}$
  • C
    $\frac{1}{a^2 \cos^2 x + b^2 \sin^2 x}$
  • D
    $\frac{1}{a^2 \cos^2 x - b^2 \sin^2 x}$

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