If `z_1` and `z_2` are two complex numbers such that `(z_1-2z_2)/(2-z_1bar(z_2))` is unimodular whereas `z_1` is not unimodular then `|z_1|`=

Let z_1 , z_2 be two complex numbers such that (z_1-2z_2)/(2-z_1barz_2) is unimodular . If z_2 is not unimodular then find |z_1| .

A complex number z is said to be uni-modular if |z|=1 . Suppose z_(1) and z_(2) are complex numbers such that (z_(1)-2z_(2))/(2-z_(1)bar z_(2)) is uni-modular and z_(2) is not uni-modular. Then the point z_(1) lies on a:

A complex number z is said to be unimodular if abs(z)=1 . Suppose z_(1) and z_(2) are complex numbers such that (z_(1)-2z_(2))/(2-z_(1)z_(2)) is unimodular and z_(2) is not unimodular. Then the point z_(1) lies on a

A complex number z is said to be unimodular if . Suppose z_1 and z_2 are complex numbers such that (z_1-2z_2)/(2-z_1z_2) is unimodular and z_2 is not unimodular. Then the point z_1 lies on a : (1) straight line parallel to x-axis (2) straight line parallel to y-axis (3) circle of radius 2 (4) circle of radius sqrt(2)

If z_(1) and z_(2) are two complex numbers such that |(z_(1)-z_(2))/(z_(1)+z_(2))|=1, then

If z_(1) and z_(2) are two complex numbers such that |(z_(1)-z_(2))/(z_(1)+z_(2))|=1 , then

If z_(1) and z_(2) are two complex numbers such that z_(1)+2,1-z_(2),1-z, then

If z_(1) and z_(2) are two complex numbers such that |z_(1)|= |z_(2)|+|z_(1)-z_(2)| then