જો $\int f(x) \sin x \cos x \, dx = \frac{1}{2(b^2 - a^2)} \log f(x) + c$ હોય,જ્યાં $c$ એ સંકલનનો અચળાંક છે,તો $f(x)$ શું છે?

  • A
    $\frac{2}{ab \cos 2x}$
  • B
    $\frac{2}{(b^2 - a^2) \cos 2x}$
  • C
    $\frac{2}{ab \sin 2x}$
  • D
    $\frac{2}{(b^2 - a^2) \sin 2x}$

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