If then
f(x) is continuous and differentiable for all x in its domain
f(x) is continuous for all for all x in its domain but not differentiable at
f(x) is neither continuous nor differentiable at
none of these.
It is evident from the graph of that f(x) is everywhere continuous but not differentiable at
Study 40% syllabus and score up to 100% marks in JEE