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| 1. |
Prove that (e^2x + e^-x - e^x - 1)/(e^2x - e^-x +e^x - 1) = (e^x - 1)/(e^x +1). |
| Answer» Prove that (e^2x + e^-x - e^x - 1)/(e^2x - e^-x +e^x - 1) = (e^x - 1)/(e^x +1). | |