- #1
uzman1243
- 80
- 1
Homework Statement
Homework Equations
(above)
The Attempt at a Solution
I know that x=tanh(y) can be shown as y=tanh^-1(x). The problem is how do i get from there to the next part. I'm kinda stuck here.
I can show that
x = sinh(y)/cosh(y)
x = (e^y - e^-y) / (e^y + e^-y)
x = lny (1+y)/(1-y)
I know something is terribly wrong in the last step. and I don't think this is the way to proceed with the question. Can you help me out?