Where is the function g(x) = 3x^ 2 - x + 5 differentiable?

Determine if the function f(x) = { x+1 , x<1 , 2rootx x>1 }is differentiable at x = 1.

Determine if the function g(x) = { x+1 , x<1 , 2rootx x>1 }is differentiable at x = 1.

Where is the function h(t) =(t+5) ^1/3 is differentiable

Determine if the function f(x) = { 4-x x > equal to 0 , 3x x>0 is differentiable at x = 0.