Chapter 11.1, Problem 2E

In Exercises 1-4, choose the best answer for each limit.

2. If $\underset{x\to 2^{-}}{\lim }f(x)=\underset{x\to 2^{+}}{\lim }f(x)=-1$, but f(2) = 1, then $\underset{x\to 2}{\lim }f(x)$

1. (a) is −1.
2. (b) does not exists.
3. (c) is infinite.
4. (d) is 1.