All you have to do is to show that the function is differentiable in the domain x>0 because a function must be continuous at a point in order for it to be differentiable at that point. Hope that helps!
All you have to do is to show that the function is differentiable in the domain x>0 because a function must be continuous at a point in order for it to be differentiable at that point. Hope that helps!
It looks like he needs to do it by definition, ie. an proof.
But of course, since swtbellrose did not show any work at all, we have no idea what the problem really is. My first thought was just to note that which is the value of so the function is continuous at x= 0.