Theory?
Calculus
Level
3
Which statements below are true?
a) There exists a continuous function \(f:\mathbb{R} \rightarrow \mathbb{R}\) such that it is not differentiable at any point.
b) If a complex-valued function \(f:\mathbb{C} \rightarrow \mathbb{C}\) has a first derivative, then it is infinitely derivative.
by
Guillermo Templado