If z and z1 are complex no. Such that 2z/3z1 is purely imaginary then prove that!z-z1/z+z1!=1

If z and z1 are complex no. Such that 2z/3z1 is purely imaginary then

1.	If z and z1 are complex no. Such that 2z/3z1 is purely imaginary then prove that!z-z1/z+z1!=1
Answer»