- #1
masterchiefo
- 212
- 2
Homework Statement
1. I have to prove that x+ln(1+e^(-x)) is equal to ln(1+e^(x))
Homework Equations
The Attempt at a Solution
1. x+ln(1+e^(-x)) =ln(1+e^(x))
ln(e^(-x)+1)+x
ln(1/(e^x)+1)+x
Im blocked here.. :(
thanks