Chapter 9 - Section 9.3 - Logarithmic Functions - Exercise Set - Page 703: 114

False

The domain of logarithmic function $y=\log_b x$ is $x>0$ and range is $y\in \mathbb{R},$. Thus, $\log(-100)$ is undefined. Therefore, the given statement is false. A correct form is: $\log 100=2$ or $\log \frac{1}{100}=-2$