## Precalculus (6th Edition) Blitzer

$$\lim_{x \to \pi }f(x)=0$$
To find $\lim_{x\to \pi }f(x)$, examine the graph of $f$ near $x=\pi$. As $x$ gets closer to $\pi$, the values of $f(x)$ get closer to $0$. We conclude from the graph that$$\lim_{x \to \pi }f(x)=0.$$