Suppose I _ 2 f(a:)= Stdt. 5 + cos2 (t) Find the critical number(s) (afx). ANSWER: :c = s, -6 2 (Enter a number: a list of numbers separated by commas, or the word NONE.) Correct! Now, examine the behavior of the function f on intervals between the critical numbers by lling in the table below: (001_) (6: 6) (6100} sign of f': v v v behavior of f: v v v