Show that `y = |x|` is not differentiable at `x = 0`

Show that f(x)=|x| is not differentiable at x=0.

Show that f(x)=|x| is not differentiable at x=0.

Show that f (x) = [x] is not differentiable at x = 1 .

Show that f(x)=x^(1/3) is not differentiable at x=0

(i) Show that f (x) = x ^( 4//3) is differentiable at x = 0 , and hence find f ' (0) . (ii) Show that g(x) = x ^( 3//2) is not differentiable at x = 0

Show that f(x)=(x^(1))/(3) is not differentiable at x=0.

show that f(x) =|x| is continuous but not differentiable at x =0

Show if f(x)=|x| is differentiable for all x.

Show that the function f(x)=x^3/2 is not differentiable at x=0.