Comedk
Circle
COMEDK 2020
MCQ+1 / -02020
\({x^2} + {y^2} - 6x - 6y + 4 = 0\), \({x^2} + {y^2} - 2x - 4y + 3 = 0\), \({x^2} + {y^2} + 2kx + 2y + 1 = 0\). If the radical centre of the above three circles exists, then which of the following cannot be the value of k?