$\int \left(\frac{x-3}{x^2+9}\right)^2 \, dx =$

  • A
    $\frac{1}{3} \tan^{-1}\left(\frac{x}{3}\right) - \frac{3}{x^2+9} + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • B
    $\frac{1}{3} \tan^{-1}\left(\frac{x}{3}\right) - \frac{1}{x^2+9} + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • C
    $\frac{1}{3} \tan^{-1}\left(\frac{x}{3}\right) + \frac{3}{x^2+9} + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.
  • D
    $\frac{1}{3} \tan^{-1}\left(\frac{x}{3}\right) + \frac{1}{x^2+9} + c$,જ્યાં $c$ એ સંકલનનો અચળાંક છે.

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