### Home > CALC > Chapter 6 > Lesson 6.4.1 > Problem6-129

6-129.

Remember that a limit does not always agree with the actual value.

Refer to hint in part (a).

In order for a limit to exist:

$\lim_{x\rightarrow a^{-}}f(x)\text{ must agree with}\lim_{x\rightarrow a^{+}}f(x).$

Refer to hint in part (c).

Refer to the hint in part (a).

Refer to the hint in part (c).