Could you please help me

Use the following three identities to evaluate sin 10x cos 7x dx. sin sx costx = 1 [sin (s + 1) + sin (s-t)x] sin sy sintx = [cos (s + 1)x - cos (s =[)x] COs SX cos ty = [cos (s *1x * cos (s-1)x] sin 10x cos 7x dx=