I just want someone to check my derivatives to see if I did them right:
This is assuming that and are constants?
First multiply out the bottom.
The quotient rule states that:
So, by the quotient rule we have:
Seems like you understand it, but remember the quotient rule:
(bottom*derivative of the top)-(top*derivative of the bottom) / (bottom squared)
***I basically need the second derivative so I can find the variables and given that the relative minimum is (2,-1). (Unless there is another way to solve the problem WITHOUT the second derivative.)
Sorry for the double post, but something doesn't seem right.
Here's my second derivative (too big to put into fraction form, I guess):