Solve the Equation $$\mathrm { e } ^ { \mathrm { x } } + \mathrm { e } ^ { - \mathrm { x } } = 6$$

Multiple Choice

Solve the equation.
- $$\mathrm { e } ^ { \mathrm { x } } + \mathrm { e } ^ { - \mathrm { x } } = 6$$

A) $1.3573 , - 2.1682$
B) $1.7551 , - 1.5319$
C) $1.8184 , - 1.8184$
D) $1.7627 , - 1.7627$