Why isn't abs(x) differentiable at x=0? (definition of derivative)
8:04
Derivative of absolute value function
17:20
Why a function is not differentiable at the kink or cusp
9:17
#mensuration #mathclass10 #education
16:49
how do we know the derivative of ln(x) is 1/x (the definition & implicit differentiation)
16:58
A Brilliant Limit
5:37
show that the derivative of abs(x-6) does not exist at x=6 by using the definition of derivative
9:49
Solving x^5=1
17:32