Hi, this is kinda urgent so please respond quickly if you can.
My "root" function (dunno if it's called that in English, I'm from Austria) is:
f(x) = 2x • lnx
My first "derivative" (?) is:
f'(x) = 2 • lnx + 2
Now my question is what the second derivative would be. I don't know how to apply the rules here since I have a multiplication and an addittion there.
Is this correct:
f''(x) = 2/x + lnx