sin - 1 1 + x + 1 - x 2 , 0 < x < 1 Share with your friends Share 0 Neha Sethi answered this Dear student Note:cos2A=1-2sin2Acos2A=2cos2A-1sinA+B=sinAcosB+cosAsinB Regards 0 View Full Answer Mohana answered this Simple method 1