Intercept made by the circle ` zbar z +bar a+abar z+r=0` on the real axis on complex plane is `sqrt((a+ bar a )-r)` b. `sqrt((a+ bar a )^2-r)` c. `sqrt((a+ bar a )^2-4r)` d. `sqrt((a+ bar a )^2-4r)`

Intercept made by the circle zbar(z)+bar(a)+abar(z)+r=0 on the real axis on complex plane is sqrt((a+bar(a))^(2)-4r)

Intercept made by the circle zbar(z)+alphabar(z)+bar(alpha)z+r=0 on the real axis on complex plane,is (a) sqrt(alpha+alpha)-r)(b)sqrt(alpha+alpha)-2r)( c) sqrt(alpha+alpha)+r)(d)sqrt((alpha+alpha)^(2)-4r)

The figur in the complex plane given by 10zbar(z) - 3(z^(2)+bar(z)^(2)) + 4i(z^(2)-bar(z)^(2))=0 is

If |bar r|=9 and bar r is equally inclined to the co-ordinate axes, then bar r=

The equation zbar(z)+abar(z)+bar(a)z+b=0,b in R represents circle,if

If z = x + iy , then show that 2 bar(z) + 2 (a + barz) + b = 0 , where b in R , represents a circles.