If a function is differentiable at a point; it is necessarily continuous at that point. But; the converse is not necessarily true.

Consider the following statements: 1. The derivative where the function attains maxima or minima be zero. 2. If a function is differentiable at a point, then it must be continuous at that point. Which of the above statements is/are correct ?

Prove that every identity relation on a set is reflexive,but the converse is not necessarily true.

Prove that every identity relation on a set is reflexive,but the converse is not necessarily true.

A nucleophile must necessarily have

Is every continuous function differentiable?

Define continuity of a function at a point.