### Home > PC3 > Chapter 7 > Lesson 7.2.2 > Problem 7-89

7-89.

Evaluate the following limits using either a calculator or algebra.

Substitute

in for .

This can be done because it does not create division by zero.

Substituting

in for results in division by zero. Factor and simplify, eliminating this issue. Then substitutein for ' '.

where

where