यदि $\int {\frac{{dx}}{{{x^3}{{\left( {1 + {x^6}} \right)}^{2/3}}}} = xf\left( x \right){{\left( {1 + {x^6}} \right)}^{\frac{1}{3}}} + C} $ जहाँ $C$ एक समाकलन स्थिरांक है,तो फलन $f(x)$ किसके बराबर है?

  • A
    $ - \frac{1}{{2{x^2}}}$
  • B
    $ - \frac{1}{{2{x^3}}}$
  • C
    $ + \frac{1}{{2{x^3}}}$
  • D
    $ \frac{3}{{{x^2}}}$

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$\int {\frac{{2x + 5}}{{\sqrt {7 - 6x - {x^2}} }}dx} = A\sqrt {7 - 6x - {x^2}} + B\,{\sin ^{ - 1}}\left( {\frac{{x + 3}}{4}} \right) + C$ (जहाँ $C$ समाकलन का एक स्थिरांक है),तो क्रमित युग्म $(A, B)$ बराबर है

यदि $\int \sqrt{\frac{2}{1+\sin x}} dx = 2 \log |A(x) - B(x)| + C$ और $0 \leq x \leq \frac{\pi}{2}$ है,तो $B(\frac{\pi}{4}) = $

$\int \frac{4 e^{x}+6 e^{-x}}{9 e^{x}-4 e^{-x}} d x=A x+B \log \left|9 e^{2 x}-4\right|+c$,तो (जहाँ $c$ समाकलन का स्थिरांक है)

मूल्यांकन करें: $\int \frac{2 \cos x+1}{(2+\cos x)^2} d x - \frac{\sin x}{2+\cos x}$

$\int \sqrt{x^2-8 x+7} \, dx = $ . . . . . . $+ C$.

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