posted by charlie on .
given: 1st derivative is
2(2-3x-2x^2)/(1+x^2)^2 (quotient rule)
I've found the stationary points to be x=1/2 and x=-2
Am I on the right track?
If so, I plan to plug in values to the L andR of them into the whole derivative so as to clasify them. Still on track?
those are the correct values of x where the derivative is zero.
I don't know what you mean by the second part.
Thanks for the confirmation: The second part refers to deciding whether the zero points are minima or maxima.