N Nikunj Jan 2018 9 0 GTA Sep 28, 2019 #1 Hello, I am stuck with this problem. I can see that the answer is "1" in the graphing calculator but not able to find it algebraically. Find F^{-1}(6) for F(x)= e^{x-1}+ 2lnx + 5x Any help will be appreciated.

Hello, I am stuck with this problem. I can see that the answer is "1" in the graphing calculator but not able to find it algebraically. Find F^{-1}(6) for F(x)= e^{x-1}+ 2lnx + 5x Any help will be appreciated.

Cervesa Dec 2014 130 101 USA Sep 28, 2019 #2 The inverse of this function cannot be found using elementary algebraic methods ... one has to notice by observation that $f(1)=6 \implies f^{-1}(6)=1$, or use technology as you did. Reactions: 1 person

The inverse of this function cannot be found using elementary algebraic methods ... one has to notice by observation that $f(1)=6 \implies f^{-1}(6)=1$, or use technology as you did.