- #1
Calculuser
- 49
- 3
I've searched and thought on it for a long time but I couldn't find any mathematical proof or something else about the formula of hyperbolic functions. [itex]sinh=\frac{e^{x}-e^{-x}}{2},cosh=\frac{e^{x}+e^{-x}}{2}[/itex] How do I get these formulas mathematically??