1. 2.8: Limits and Continuity of Trig Functions
Objectives:
Special limits of trig functions
Techniques to find limits
©2002 Roy L. Gover (

2. Limits of Trig Functions
Limits that do not exist…due to oscillation

3. Example Find the limit if it exists: Maybe…the squeeze theorem…
Factor and cancel or rationalization doesn’t work…
Substitution gives the indeterminate form…

4. Example
g()=1
h()=cos

5. Example
&
therefore…

6. Two Special Trig Limits
Memorize

7. Example
Find the limit if it exists:

8. Example
Find the limit if it exists:

9. Example
Find the limit if it exists:

10. Example
Find the limit if it exists:

11. Try This
Find the limit if it exists: