ધારો કે $f: \mathbb{R} \rightarrow \mathbb{R}$ અને $g: \mathbb{R} \rightarrow \mathbb{R}$ સતત વિધેયો છે. તો સંકલન $\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} [f(x)+f(-x)][g(x)-g(-x)] \, dx$ ની કિંમત શોધો.

  • A
    $\pi$
  • B
    $1$
  • C
    $-1$
  • D
    $0$

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