Solve (a) f(x)=0. (b) f(x) > 0, and (c) f(x)

(a) O. (b) O, and (c) O the interval ICOS X 2 COS X The fat 2 x COS 2 COS x O in the is (Simplify your answer Type an exact answer. using as needed use integers or fractions for any numbers in the expression. a comma to separate answers as needed,) Find for 2 Sin x COS 2 cos > O the Choose the below O A. The solution set @ B. The Set Of O [O CJ C. The solution set of O U Find the solution set for2sin xcos x2cos in the specified interval Choose thecoftectanswerbgknv_ The O, U ,2r The solution set of (x) < O is O, The solution get Of O is [O , 20