$\int \frac{x}{1 + x^4} \, dx = $

  • A
    $\frac{1}{2} \cot^{-1}(x^2) + c$
  • B
    $\frac{1}{2} \tan^{-1}(x^2) + c$
  • C
    $\cot^{-1}(x^2) + c$
  • D
    $\tan^{-1}(x^2) + c$

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$\int \frac{d x}{(x-1) \sqrt{x+2}} = $

यदि $\int \frac{d x}{\sqrt[3]{\sin ^{11} x \cos x}}=-\left(\frac{3}{8} f(x)+\frac{3}{2} g(x)\right)+c$ है,तो:

यदि $\int \sqrt{x}(1-x^3)^{-\frac{1}{2}} dx = \frac{2}{3} g(f(x)) + c$ है,तो

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