If z is a complex number then radius of the circle `zbarz-2(1+i)z-2(1-i)barz-1=0` is

If Z is a complex number the radius of z bar z - ( 2+3i)z - (2-3i)barz + 9 =0 is equal to

The center of the circle . zbarz+(1+i)z +(1+i)barz-7=0 are respectively.

Find the center and radius of the circle 2zbarz+(3-i)z+(3+i)z-7=0," where " i=sqrt(-1).

Find the center and radius of the circle 2zbarz+(3-i)z+(3+i)z-7=0," where " i=sqrt(-1).

Find the center and radius of the circle 2zbarz+(3-i)z+(3+i)z-7=0," where " i=sqrt(-1).

if (1+i)z=(1-i)barz then z is

If z_1,z_2,z_3 are three complex number then prove that z_1Im(barz_2.z_3)+z_2Im(barz_3.z_1)+z_3Im(barz_1.z_2)=0

Find the complex number z if zbarz = 2 and z + barz=2

Find the complex number z if zbarz = 2 and z + barz=2

In complex plane z_(1), z_(2) and z_(3) be three collinear complex numbers, then the value of |(z_(1),barz_(1),1),(z_(2),barz_(2),1),(z_(3), barz_(3),1)| is -