Math Lessons, Calculators and Homework Help

It is time to solve your math problem

 « Limit of Irrational Functions
Limits: (lesson 4 of 5)

Limits of Trigonometric Functions

Important limits:

Example

Find the limit:

.

Solution

Direct substitution gives the indeterminate form 0/0. You can still solve this problem, however: write tan x as (sin x)/(cos x).