Find domain of function cos inverse(3x-2). Share with your friends Share 10 tianlong.aeshwanth... answered this -1<=3x-2<=1 1<=3x<=3 1/3<=x<=1 hence range of the function is[1/3,1] 4 View Full Answer Amrith answered this (arccos means cos inverse) Domain of arccos x is [-1,1] So here -111/3 Therefore x belongs to [1/3 , 1] -7 Omkar Pandey answered this Since, domain of cos inverse = [-1,1] So, cos^1 (3x-2)=[1/3,1] 1