Find the open interval(s) on which the function f(x) = cos (2x) is increasing in the interval (0,6.283). Round numerical values in your answer to three decimal places. A increasing on: (0.785,1.571), (2.356, 3.142), (3.927,4.712), (5.498, 6.283) OB. increasing on: (3.142,3.927). (1.571,2.356), (4.712,5.498), (0,6.283) increasing on: (0,0.785), (1.571,2.356), (3.142,3.927), (4.712,5.498) D. increasing on: (0.785,2.571). (2.356,3.142), (4.927,4.712), (5.498,6.283) E. increasing on: (2.356,3.142), (3.927,4.712), (5.498, 6.283), (0.785,1.571)