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