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Evaluate: int\ sqrt(e^(2x)-1)\ dx...

Evaluate: `int\ sqrt(e^(2x)-1)\ dx`

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`int sqrt{e^{2 x}-1} d x`
` Rightarrow int sqrt{(e^{x})^{2}-1} d x`
` Rightarrow frac{e^{x}}{2} sqrt{e^{2 x}-1}-log |e^{x}+sqrt{e^{2 x}-1}|+c`
` frac{1}{2}[e^{x} sqrt{e^{2 x}-1}-log |e^{x}+sqrt{e^{2 x}-1}|]+c`
`
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