$\int \frac{x^2}{(x\sin x + \cos x)^2} \, dx = $

  • A
    $\frac{\sin x + \cos x}{x\sin x + \cos x}$
  • B
    $\frac{x\sin x - \cos x}{x\sin x + \cos x}$
  • C
    $\frac{\sin x - x\cos x}{x\sin x + \cos x}$
  • D
    इनमें से कोई नहीं

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