MCQ
$\int \frac{d x}{1-e^x}$ का मान बराबर होगा$-$
- ✓$-\log \left(1-e^{-x}\right)+ C$
- B$\log \left(1+e^{-x}\right)+C$
- C$\log \left(1+e^x\right)+ C$
- D$\log \left(\frac{1+e^x}{e^{-x}}\right)+ C$

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