Sin5x.Cos2x + Cos6x.Sin3x = Sin8x.Cosx (PROVE) Share with your friends Share 7 Aarushi Mishra answered this sin5x cos2x + cos6x sin3x=122sin5x cos2x + 2cos6x sin3x=122sin5x cos2x + 2sin3x cos6xUse 2sinx cosy= sin x+y+ sinx-y=12sin 5x+2x+sin 5x-2x+sin 6x+3x+sin 3x-6x =12sin 7x+sin 3x+sin 9x+sin -3x=12sin 7x+sin 3x+sin 9x-sin 3x=12sin 7x+sin 9xUse sin x+ sin y=2 sin x+y2 cos x-y2=122 sin 9x+7x2 cos 9x-7x2= sin 16x2 cos 2x2=sin 8x cos x 16 View Full Answer
