$\int \frac{1+x \cos x}{x\left[1-x^2\left(e^{\sin x}\right)^2\right]} d x=$

  • A
    $\frac{1}{2} \log \left|\frac{\left(x e^{\sin x}\right)^2}{\left(x e^{\sin x}\right)^2+1}\right|+c$
  • B
    $-\frac{1}{2} \log \left|\frac{\left(x e^{\sin x}\right)^2}{\left(x e^{\sin x}\right)^2+1}\right|+c$
  • C
    $\frac{1}{2} \log \left|\frac{\left(x e^{\sin x}\right)^2}{\left(x e^{\sin x}\right)^2-1}\right|+c$
  • D
    $-\frac{1}{2} \log \left|\frac{\left(x e^{\sin x}\right)^2}{\left(x e^{\sin x}\right)^2-1}\right|+c$

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फलन का समाकलन कीजिए: $f^{\prime}(ax+b)[f(ax+b)]^n$

$f(x) = \frac{x}{1 + x^2}$ का एक आदि फलन (primitive) है:

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