1) when RHL doesn't exist....u just have to find LHL
2) ok
3) if some point doesn't lie in the domain of function that doesn't mean that the limit doesn't exist at that point...
u can just verify this by making graph of a function which u can take undefined at some point(and continuous elsewhere)...then LHL and RHL both exist and are equal ...but function at that point is undefined...so limit exists but it is not continuous...
Moderation Team
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