Part 5 of 5 x sin 4x2 cos 9x2 dx 20 Since cos 0 cos 8 then

Last updated: 7/7/2023

Part 5 of 5 x sin 4x2 cos 9x2 dx 20 Since cos 0 cos 8 then we can rewrite this as C 20 cos 13x 52 52 C