Saitechinfo Telegram Channel in Limits and Derivatives
- A function that approaches an output (l) for the given input (c) is called limit function of a variable x.
- Represented by

- Left hand and right hand limits are called one sided limits.
- Left Hand Limit and Right Hand Limit are represented by

Let us consider f(x) = x + 4, then, on approaching the input value 2, f(x) have the following outputs.

Sketch notes
