Question

where is the function f(x) = absolute of x differentiable

Answer 1

think where it isn't differentiable

Answer 2

Every where except x=0, since the gradient changes by 90 degrees at that point.

Answer 3

at x = 0 and when h<o =1 and when h=>o = -1

Answer 4

can x be differentiable with h give like that when using the left and right handed derivates

Answer 5

I think you have your gradient the wrong way around... when x>0, the gradient is 1. When x<0, the gradient is -1.

Answer 6

yep... ur right