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### Course: AP®︎/College Calculus AB > Unit 1

Lesson 6: Determining limits using algebraic properties of limits: direct substitution- Limits by direct substitution
- Limits by direct substitution
- Undefined limits by direct substitution
- Direct substitution with limits that don't exist
- Limits of trigonometric functions
- Limits of trigonometric functions
- Limits of piecewise functions
- Limits of piecewise functions
- Limits of piecewise functions: absolute value

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# Direct substitution with limits that don't exist

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