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Is the limit infinite or DNE? The video works through an example of finding a vertical asymptote for a trigonometric function and determining the one-sided limits on each side of the vertical asymptote.
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Instructional Ideas
- Have the class use a graphing calculator to check the results in the video
- Only includes one example; create a worksheet with more so students can practice
Classroom Considerations
- Individuals need to know how to rewrite trigonometric functions in terms of sine or cosine
- Learners should also be able to evaluate limits numerically
- This video is hosted on YouTube
Pros
- Clear explanations simplify the concept
Cons
- Uses some incorrect terminology