Quadratic: Solve (e^x - e^-x)/2 = 2 (sinhx = 2)
I know x = 1.443 but I need to solve it now using algebra, not my calculator.
Pauls Online Notes : Algebra - Solving Exponential Equations
Algebra II: Exponential and Logarithmic Functions - Math for Morons Like Us
These are 2 of the sites I've been on, I've also gone through my textboox but I can't find any information for when you have two e's and two uses of x in the equation.
This is as far as I got.
(e^x - e^-x)/2 = 2
e^x - e^-x = 4
ln4= lne^x - lne^-x
Thanks in advance, I'm really struggling here.