### Home > CALC > Chapter 8 > Lesson 8.3.2 > Problem 8-118

8-118.

Determine the following limits.

This is Ana's Definition of the Derivative.

See the hint in part (a).

For limits to infinity, we can compare the numerator with the denominator. As the numerator approaches infinity,

oscillates betweenand ... not very big. As the denominator approaches infinity, also approaches infinity. So the denominator is MUCH larger than the numerator.

Recall that the number

is about. It's larger than and smaller than . Use that to compare the power of the numerator and denominator.