If |(z_1 z- z_2)/(z_1 z+z_2)|=k, (z_1 , z_2 ne 0) then
Answer»
for `K =1` LOCUS of Z is straight line for `k cancel(in) {1,0}z` lieson a circle for `k=0` z represents a point for `k=1,z` lies on the perpendicular bisector of the segment JOINING `(z_2)/(z_1) and (z_2)/(z_1)`