Find the second derivative of f(x)=x^(5/3)+2 and show steps.

Question

anonymous · Answer

have you found the first derivaitve

anonymous · Answer

I think so.  I got (5/3)x^(2/3) which I don't know if it is correct but I've had problems with the chain rule and don't know if there was more I was supposed to do..

anonymous · Answer

It looks like a basic power rule problem:
f(x)=x^(5/3)+2
f '(x)=(5/3)x^(2/3)
Then take the derivative again.

anonymous · Answer

Awesome so I am on the right track!

anonymous · Answer

f'(x)=(5/3)x^(2/3)
f"(x)=(10/9)x^(-1/3)

anonymous · Answer

attachment

anonymous · Answer

So this is my first time posting.  Once this is answered should I delete it or leave it?  Whats the proper etiquette?

amistre64 · Answer

questions asked and answered are for the benefit of the community as a whole; so its best to leave it up.  Deleting is for when you post bad to begin with.

anonymous · Answer

you dont wanna erase my work do you :(

anonymous · Answer

Haha I'd hate to erase this great work, thanks!