MCQ
$\int_0^{\pi / 4} \tan ^2 x d x$ का मान है-
  • A
    $1-\frac{\pi}{4}$
  • B
    $1+\frac{\pi}{4}$
  • C
    $-1+\frac{\pi}{4}$
  • D
    $-1-\frac{\pi}{4}$

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