JEE Main 202118 Mar, Morning shiftMathematicsMediumThree Dimensional Geometry249× since 2002
Let the plane ax + by + cz + d = 0 bisect the line joining the points (4, 3, 1) and (2, 3, 5) at the right angles. If a, b, c, d are integers, then the
minimum value of (a² + b² + c² + d²) is _________.