$\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} f(x) dx$ का मान ज्ञात कीजिए,जहाँ $f(x) = \sin |x| + \cos |x|$ और $x \in [-\frac{\pi}{2}, \frac{\pi}{2}]$.

  • A
    $0$
  • B
    $8$
  • C
    $4$
  • D
    $2$

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