ધારો કે $g(x)$ એ $f(x)$ નું પ્રતિવિકલિત (antiderivative) છે. તો $\ln(1 + (g(x))^2)$ એ કોનું પ્રતિવિકલિત છે?

  • A
    $\frac{2f(x)g(x)}{1 + (f(x))^2}$
  • B
    $\frac{2f(x)g(x)}{1 + (g(x))^2}$
  • C
    $\frac{2f(x)}{1 + (f(x))^2}$
  • D
    કોઈ નહીં

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