1.

Which one of the following is not true always?

Answer»

if f (x) is not continuous at x = a, then it is
if f (x) is continuous at x = a, then it is DIFFERENTIABLE at x = a
if f (x) and g (x) are differentiable at x = a, then `f(x)+g(x)` is ALSO differentiable at x = a
if a FUNCTION f (x) is continuous at x = a, then `lim_(x to a)f(x)` exists

Answer :B


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