- #1
anubis01
- 149
- 1
Homework Statement
1)Find the inverse of a f(x)=1+e^x/1-e^x
2)solve for x when e^ax=ce^bx where a doesn't equal b.
Homework Equations
1)ln(e^x)=x
2)ln(e^x)=x
The Attempt at a Solution
1)
(1+e^x/1-e^x)(1+e^x/1+e^x)=(2+e^x^2/2)
ln(2+e^x^2/2)= ln2+x^2/ln2
sqrt(ln2/ln2)=x
I think this is what x comes out to but I'm not sure.
2)
ln(e^ax)=ln(ce^bx)
ax=bxC
a-b=x-x
Again I'm not sure if this is right, any help is much appreciated.