Find the critical point(s) of the function y = 0 - 2 cos (0) at 0 e [2x, 4x]. (Give your answer in the form of a comma-separated list of values. Express numbers in exact form. Use symbolic notation fractions where needed. Enter DNE if the function has no critical points.) critical point(s): Determine the x-coordinates of the critical point(s) that correspond(s) to a local minimum or a local maximum. Give your answer in the form of a comma-separated list. Express numbers in exact form. Use symbolic notation and fraction where needed. Enter DNE if the function has no local minimum or local maximum. local minima: local maxima: Find the intervals on which the function is increasing or decreasing (Give your answer as an interval in the form (+, +). Use the symbol co for infinity, U for combining intervals, and an appropriate type of parenthesis "(",")", "[","I" depending on whether the interval is open or closed. Enter @ if the interval is empty. Express numbers in exact form. Use symbolic notation and fractions where needed.) increasing decreasing