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

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

Find the radius and centre of the circle z bar(z) - (2 + 3i)z - (2 - 3i)bar(z) + 9 = 0 where z is a complex number

If z=3+5i then z^(3)+barz+198 is equal to

Find the radius and centre of the circle z bar(z)- (2 + 3i) z-(2-3i) bar(z)+ 9=0 where z is a complex variable

If z is a non zero complex, number then |(|barz |^2)/(z barz )| is equal to (a). |(barz )/z| (b). |z| (c). |barz| (d). none of these

For complex number z =3 -2i,z + bar z = 2i Im(z) .

For complex number z = 5 + 3i value z -barz=10 .