solve the equation tan(cos-1 x)=sin(cot-11/2) Share with your friends Share 19 Anuradha Sharma answered this Let cot-112=y so cot y =12now tan y = 2 1 so sin y = 25So finaly , sincot-112=sin y = 25Now we will get, tancos-1 x=25or cos-1x= tan-1 25Let tan-1 25 = z so tan z = 25or sin z = 23 and cos z = 53Here putting the values we get, cos-1x= tan-1 25=z so x = cos z = 53 50 View Full Answer