$ \int \frac{e^{x}\left(x^{2} \tan ^{-1} x+\tan ^{-1} x+1\right)}{x^{2}+1} d x $ का मान ज्ञात कीजिए।

  • A
    $ e^{x} \tan ^{-1} x+c $
  • B
    $ \tan ^{-1}\left(e^{x}\right)+c $
  • C
    $ \tan ^{-1}\left(x^{e}\right)+c $
  • D
    $ e^{\tan ^{-1} x}+c $

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यदि $\int e^{\alpha x}\left(\frac{1-\beta \sin x}{1-\cos x}\right) d x=-e^x \cot \frac{x}{2}+c$ है, तो $\frac{\alpha^2+\beta^2}{2 \alpha \beta}=$

$\int \left[\frac{1-\log x}{1+(\log x)^{2}}\right]^{2} dx = $

फलन का समाकलन कीजिए : $e^{x}(\sin x + \cos x)$

$\int \frac{x e^{x} d x}{(1+x)^{2}}$ का मान ज्ञात कीजिए।

$\int e^x \left( \log x + \frac{1}{x} \right) dx$ का मान ज्ञात कीजिए।

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