JEE Main 202118 Mar, Morning shiftMathematicsMediumThree Dimensional Geometry249× since 2002
The equation of the planes parallel to the plane x 2y + 2z 3 = 0 which are at unit distance from the point (1, 2, 3) is ax + by + cz + d = 0. If (b d) = k(c a), then the positive value of k is :