fun-lim

Question: If ${{e}^{x}}=y+\sqrt{1+{{y}^{2}}}$, then y =



1) $\frac{{{e}^{x}}+{{e}^{-x}}}{2}$
2) $\frac{{{e}^{x}}-{{e}^{-x}}}{2}$
3) ${{e}^{x}}+{{e}^{-x}}$
4) ${{e}^{x}}-{{e}^{-x}}$
Solution: Explanation: No Explanation
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