If a = 3, b = 4, c = 5 each one of a, b and c is perpendicular to the sum of the remaining, then is equal to
If P, where P(A/B) stands for probability, then P(A/B) is equal to
C.
The vector equation of the plane, which is at a distance of , from the origin and the normal from the origin is is
Find the coordinates of the foot of the perpendicular drawn from the origin to the plane 5y + 8 = 0.