MathematicsMedium127×since 2002Q3122The tangent to the circle C₁ : x² + y² −-− 2x −-− 1 = 0 at the point (2, 1) cuts off a chord of length 4 from a circle C₂ whose center is (3, −-−2). The radius of C₂ is :A2B2\sqrt 22C3D6\sqrt 66Check answerSkip