$\int_{1 / 2}^{1 / \sqrt{2}} \frac{1}{\left(x+\sqrt{1-x^2}\right)\left(1-x^2\right)} d x=$

  • A
    $\log (\sqrt{3}+1)$
  • B
    $\log (\sqrt{3}-1)$
  • C
    $\log (3+\sqrt{3})$
  • D
    $\log (3-\sqrt{3})$

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$\int_0^{\pi /4} (\cos x - \sin x) dx + \int_{\pi /4}^{5\pi /4} (\sin x - \cos x) dx + \int_{2\pi }^{\pi /4} (\cos x - \sin x) dx$ का मान ज्ञात कीजिए।

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यदि $f(x) = A\sin \left( \frac{\pi x}{2} \right) + B$,$f'\left( \frac{1}{2} \right) = \sqrt{2}$ और $\int_0^1 f(x) \, dx = \frac{2A}{\pi}$ है,तो स्थिरांक $A$ और $B$ क्रमशः क्या हैं?

$\int_0^{\pi / 4} \tan ^2(x) \, dx =$

यदि $u(n) = \int_0^{\frac{\pi}{2}} (1 + \sin t)^n \sin 2t \, dt$,जहाँ $n \in N$,तो $u(4) = $

यदि $I = \int_{0}^{2} e^{x^{4}}(x - \alpha) dx = 0$ है, तो $\alpha$ किस अंतराल में स्थित है?

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