The complex number `z` is purely imaginary , if

Consider a complex number w=(z-1)/(2z+1) where z=x+iy, where x,y in R . If the complex number w is purely imaginary then locus of z is

If a complex number Z is purely imaginary then conjugate of Z is

If a complex number Z is purely imaginary then conjugate of Z is

A non-zero complex number z is said to be purely imaginary if

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

The sum of two complex numbers a+ib and c+id is purely imaginary if

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

If z is a unimodular number (!=+-i) then (z+i)/(z-i) is (A) purely real (B) purely imaginary (C) an imaginary number which is not purely imaginary (D) both purely real and purely imaginary

If z is a unimodular number (!=+-i) then (z+i)/(z-i) is (A) purely real (B) purely imaginary (C) an imaginary number which is not purely imaginary (D) both purely real and purely imaginary