If `Z_1, Z_2` are two non-zero complex numbers, then the maximum value of `(Z_1 bar Z_2+Z_2 bar Z_1)/(2|Z_1||Z_2|)` is

If Z_1 , Z_2 be two non zero complex numbers satisfying the equation |(Z_1 + Z_2)/(Z_1 - Z_2)|=1 then (Z_1 )/(Z_2) + bar(((Z_1 )/(Z_2))) is__________

Let Z_1 and Z_2 are two non-zero complex number such that |Z_1+Z_2|=|Z_1|=|Z_2| , then Z_1/Z_2 may be :

Let Z_1 and Z_2 are two non-zero complex number such that |Z_1+Z_2|=|Z_1|=|Z_2| , then Z_1/Z_2 may be :

If z_1 and z_2 are two non-zero complex numbers such that abs(z_1+z_2) = abs(z_1)+abs(z_2) , then arg(z_1)-arg(z_2) is equal to

If z_1 and z_2 are non zero complex numbers such that abs(z_1-z_2)=absz_1+absz_2 then

If z_1 and z_2 are two non - zero complex numbers such that |z_1+z_2|=|z_1-z_2|, then Argz_1-Argz_2 is

If z_(1)" and "z_(2) are two non-zero complex numbers such that |z_(1)+z_(2)|=|z_1|+|z_(2)| , then arg ((z_1)/(z_2)) is equal to

If z_1,z_2 are two non zero complex numbers such that z_1/z_2+z_2/z_1=1 then z_1,z_2 and the origin are