નિશ્ચિત સંકલનનું મૂલ્ય શોધો: $\int_{\frac{1}{2}}^{2} \frac{x^2 \ln x}{(1+x^2)^3} dx$

  • A
    $1$
  • B
    $-1$
  • C
    $\frac{1}{2}[3+\frac{1}{2} \ln 2]$
  • D
    $0$

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$\int\limits_0^{\pi / 2n} \frac{dx}{1 + \tan^n(nx)} = $

$\int_{3}^{5} \frac{\sqrt{x}}{\sqrt{8-x}+\sqrt{x}} \, dx =$

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