A find the critical points if any of the following function
A find the critical points, if any, of the following function on the given interval.
B Determine the absolute extreme values of f on the given interval.
C use a graphic utility to confirm your conclusions.
f(x)=2x^3-x^2-20x+5 on [-4,-2]
B Determine the absolute extreme values of f on the given interval.
C use a graphic utility to confirm your conclusions.
f(x)=2x^3-x^2-20x+5 on [-4,-2]
Solution
f\'=6x^2-2x-20 x=-5/3 and 2 but -4