CBSE - XI Science - Mathematics
why does a limit exist only when left hand limit is equal to the right hand limit?
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 .
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