## Calculus with Applications (10th Edition)

Logarithmic Function$:$ If $a > 0$ and \fbox{$a\neq 1$}, then the logarithmic function of base a is defined by $f(x)=\log_{a}x$, for $x>0$. $....................................$ Here, the base of $\log_{a}$ is 1, so the function on the LHS is NOT DEFINED. The statement is false.