$\int \frac{(x^{2}+1) e^{x}}{(x+1)^{2}} d x=f(x) e^{x}+C$,जहाँ $C$ एक स्थिरांक है,तो $x = 1$ पर $\frac{d^{3} f}{d x^{3}}$ का मान ज्ञात कीजिए।

  • A
    $\frac{3}{4}$
  • B
    $-\frac{3}{4}$
  • C
    $-\frac{3}{2}$
  • D
    $\frac{3}{2}$

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