question_answer

Which of the following is not true?

A)  a polynomial function is always continuous

B)                         a continuous function is always differentiable

C)                         a differentiable function  is  always continuous

D)                        \[{{e}^{x}}\]is continuous for all\[x\]

E)                         \[log\text{ }x\]is continuous for all\[x\]greater than zero