ધારો કે $f:[0,1] \rightarrow [0,1]$ એક સતત વિધેય છે જેથી તમામ $x \in [0,1]$ માટે $x^2+(f(x))^2 \leq 1$ અને $\int_0^1 f(x) dx = \frac{\pi}{4}$ થાય. તો,$\int_{\frac{1}{2}}^{\frac{1}{\sqrt{2}}} \frac{f(x)}{1-x^2} dx$ ની કિંમત શોધો.

  • A
    $\frac{\pi}{12}$
  • B
    $\frac{\pi}{15}$
  • C
    $\frac{\sqrt{2}-1}{2} \pi$
  • D
    $\frac{\pi}{10}$

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