$\int\limits_0^\infty {\frac{{{x^3}}}{{1 + x + 2{x^2} + 2{x^3} + {x^4} + {x^5}}}} dx$

  • A
    $\frac{{\pi - 2}}{2}$
  • B
    $\frac{{\pi - 1}}{2}$
  • C
    $\frac{{\pi - 2}}{4}$
  • D
    $\frac{{\pi - 1}}{4}$

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$\int_{-10}^{10} \frac{3^x}{3^{[x]}} \, dx$ का मान ज्ञात कीजिए,जहाँ $[ \cdot ]$ महत्तम पूर्णांक फलन $(G.I.F.)$ को दर्शाता है।

$\int_0^{\frac{\pi}{2}} \frac{\cos x \, dx}{\sqrt{1+\cos x \sin x}} = $

$\int_0^\pi x \sin^3 x \, dx = $

मान लीजिए कि $f(x)$ सभी वास्तविक $x$ के लिए धनात्मक है। यदि $I_1 = \int_{1-h}^{h} x f(x(1-x)) dx$ और $I_2 = \int_{1-h}^{h} f(x(1-x)) dx$,जहाँ $(2h-1) > 0$,तो $\frac{I_1}{I_2}$ का मान क्या है?

यदि $I_n = \int_{-\pi}^{\pi} \frac{\sin(nx)}{(1+\pi^x) \sin x} dx$,$n=0, 1, 2, \ldots$,तो
$(A)$ $I_n = I_{n+2}$
$(B)$ $\sum_{m=1}^{10} I_{2m+1} = 10\pi$
$(C)$ $\sum_{m=1}^{10} I_{2m} = 0$
$(D)$ $I_n = I_{n+1}$

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