જો $\int_0^{2 \pi} |x \sin x| \, dx = k \pi$ હોય,તો $k =$

  • A
    $1$
  • B
    $2$
  • C
    $3$
  • D
    $4$

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$\int_0^{\pi / 2} \frac{200 \sin x+100 \cos x}{\sin x+\cos x} d x$ ની કિંમત શોધો. ($\pi$ માં)

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

સંકલન $\int\limits_0^{\frac{1}{2}} \frac{\ln(1 + 2x)}{1 + 4x^2} dx$ ની કિંમત શોધો.

ધારો કે $f$ એક ધન વિધેય છે. ધારો કે $I_1 = \int_{1 - k}^k x f\{x(1 - x)\} dx$ અને $I_2 = \int_{1 - k}^k f\{x(1 - x)\} dx$,જ્યાં $2k - 1 > 0$ છે. તો $I_1/I_2$ શું થાય?

$\int_0^{\pi /2} |\sin x - \cos x| \, dx = $

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