why does a limit exist only when left hand limit is equal to the right hand limit?

Asked by  | 20th Aug, 2008, 05:58: PM

Expert Answer:

Left hand limit means you approach from left to a particular point,say,a.For y = f(x), there will be plenty real values

of x while approaching.You must find y nearing to f(a).Same thing happens when you approach from right vicinity.

The main concept is that the function sticks to a particular value which makes the limit exist .

Answered by  | 20th Aug, 2008, 07:13: PM

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