- #1
7yler
- 31
- 0
Find a formula for the inverse of f.
f(x)=[tex]\frac{7e^{x}-6}{e^{x}+8}[/tex]
I set f(x) equal to y, and operated on it until I got:
ln(y)=ln(7[tex]e^{x}-6)-ln(e^{x}+8)[/tex]
But I'm stuck. I'm not sure how to isolate x.
f(x)=[tex]\frac{7e^{x}-6}{e^{x}+8}[/tex]
I set f(x) equal to y, and operated on it until I got:
ln(y)=ln(7[tex]e^{x}-6)-ln(e^{x}+8)[/tex]
But I'm stuck. I'm not sure how to isolate x.