Chapter 11.1, Problem 1E

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

1. If $\underset{x\to 2^{-}}{\lim }f(x)=5$ and $\underset{x\to 2^{+}}{\lim }f(x)=6$, then $\underset{x\to 2}{\lim }f(x)$

1. (a) is 5.
2. (b) is 6.
3. (c) does not exists.
4. (d) is infinite.