$\int_{0}^{\pi} \frac{x \cos x \sin x}{\cos^{3} x + \cos x} dx = $

  • A
    $\frac{\pi}{4}$
  • B
    $\frac{\pi^{2}}{4}$
  • C
    $\frac{\pi}{8}$
  • D
    $\frac{\pi^{2}}{8}$

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સંકલન $\int_{-1}^{1} \left\{ \frac{x^{2013}}{e^{|x|}(x^{2}+\cos x)} + \frac{1}{e^{|x|}} \right\} dx$ ની કિંમત શોધો.

$\int_0^{\frac{\pi}{4}} \log \left(\frac{\sin x+\cos x}{\cos x}\right) d x=$

$\int_{0}^{\frac{\pi}{2}} \log \left[\sqrt{\frac{1-\cos 2x}{1+\cos 2x}}\right] dx =$

જો $I_{1} = \int_{0}^{1} (1 - x^{50})^{100} dx$ અને $I_{2} = \int_{0}^{1} (1 - x^{50})^{101} dx$ હોય અને $I_{2} = \alpha I_{1}$ હોય,તો $\alpha$ ની કિંમત શોધો:

જો $\int_0^{\frac{\pi}{4}} \frac{\sin^2 x}{1+\sin x \cos x} dx = \frac{1}{a} \log_e\left(\frac{a}{3}\right) + \frac{\pi}{b \sqrt{3}}$,જ્યાં $a, b \in N$,તો $a+b$ ની કિંમત .................... છે.

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