Chapter 12.7, Problem 64STP

To determine

To find :Equivalent exponential or logarithmic function

Answer to Problem 64STP

  $x=\ln s$

Explanation of Solution

Given information :

We know that, the given equation is $e^{-x}=5$

Calculation:

Taking in both sides,

  $\begin{array}{l}\ln e^{-x}=\ln 5\\ \Rightarrow -x\ln e=\ln 5[\because {\log }_a{x}^m=m{\log }_{a}x]\\ \Rightarrow -x=\ln 5[\because {\ln }_{e}e=1]\end{array}$