If `2z_1//3z_2` is a purely imaginary number, then find the value of `"|"(z_1-z_2")"//(z_1+z_2)|dot`

If z_1,z_2 are complex numbers such that, (2z_1)/(3z_2) is purely imaginary number then find |((z_1-z_2)/((z_1+z_2))| .

If (z-1)/(z+1) is a purely imaginary number (z ne - 1) , then find the value of |z| .

If z_(1),z_(2) are complex number such that (2z_(1))/(3z_(2)) is purely imaginary number,then find |(z_(1)+z_(2))/(z_(1)+z_(2))|

if the number (z-2)/(z+2) is purely imaginary then find the value of |z|

If ((z-1)/(z+1)) is purely an imaginary number and z ne -1 then find the value of |z|.

If (2z_(1))/(3z_(2)) is purely imaginary number, then |(z_(1)-z_(2))/(z_(1)+z_(2))|^(4) is equal to

If (z-1)/(z-i) is purely imaginary then find the minimum value of abs(z-(3+3i))

If the number (z-1)/(z+1) is purely imaginary, then