$\int_0^\pi \frac{x \sin x}{\sin ^2 x+2 \cos ^2 x} d x=$

  • A
    $\frac{\pi}{2}$
  • B
    $\frac{\pi^2}{2}$
  • C
    $\frac{\pi^2}{4}$
  • D
    $\frac{\pi}{4}$

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

જો $g(x)$ એ $f(x)$ નું પ્રતિવિધેય હોય અને $f(x)$ નો પ્રદેશ $x \in [1, 5]$ હોય,જ્યાં $f(1) = 2$ અને $f(5) = 10$,તો $\int_{1}^{5} f(x) dx + \int_{2}^{10} g(y) dy$ ની કિંમત શોધો.

$\int_{0}^{2a} f(x) \, dx = $

જો શૂન્યતર $x$ માટે,$af(x) + bf\left( {\frac{1}{x}} \right) = \frac{1}{x} - 5,$ જ્યાં $a \ne b,$ હોય,તો $\int_1^2 {f(x)\,dx = } $

$\int_{0}^{\pi} [\cot x] dx = $

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