Find the critical points of the following function and determine whether they are maxima, minima, or neither.\
f(x) = x^{2/3} (11 - x)\
(Give your answer in the form of a comma-separated list. Express numbers in exact form. Use symbolic notation and fractions\
where needed. Enter DNE when there are no critical points in a category.)\
f has local minima at x =\
f has local maxima at x =\
f has critical points that are neither maximum nor minimum at x =