13 Evaluate sin 5x cos 4x dx a c co cos x cos 9x C 18 cosx

Last updated: 12/12/2022

13 Evaluate sin 5x cos 4x dx a c co cos x cos 9x C 18 cosx co 18 cos 9x C b d cos 5x c cos 4x C cosx to 1 18 cos 9x C