JEE Main 201910 Jan, Morning shiftMathematicsMediumCoordinate Geometry478× since 2002
If a circle C passing through the point (4, 0) touches the circle x² + y² + 4x – 6y = 12 externally at the point (1, – 1), then the radius of C is :
JEE Main 2019 · 10 Jan, Morning shift · Q3070