I am really not understanding these. For example i have
i know that cosh is 1/2(e^x + e^-x) and sinh is 1/2(e^x - e^-x)
so... what now?
1/2(e^x + e^-x)6x+1/2(e^x - e^-x)6x
i know somehow that 6x will be whats raised to it's power of the final answer which is e^6x but how?