alitavakol
Member level 2
Is there a function satisfying these 2 conditions?
1- the function is differentiable everywhere in (a, b).
2- the derivative of the function is discontinous somewhere in (a, b).
(a, b) is an open region: a < x < b.
prove or make a counterexample.
1- the function is differentiable everywhere in (a, b).
2- the derivative of the function is discontinous somewhere in (a, b).
(a, b) is an open region: a < x < b.
prove or make a counterexample.