MCQ
$ \int \frac{dx}{\sqrt{e^{2x}-1}} = $ _______ + c
- A$ Sin^{-1}(e^{x}) $
- ✓$ Sec^{-1}(e^{x}) $
- C$ tan^{-1}(e^{x}) $
- D$ Cot^{-1}(e^{x}) $
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