$\int \log x \cdot [\log (ex)]^{-2} dx = . . . . . .$

  • A
    $\frac{x}{1 + \log x} + c$
  • B
    $x(1 - \log x) + c$
  • C
    $x(1 + \log x) + c$
  • D
    $\frac{x}{1 - \log x} + c$

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

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