TS EAMCET 10-Sep-2020 Shift 2 Solved Paper

Let Π be a plane containing the points (0 , -5, -1), (1, -2, 5), (-3, 5, 0) and L be a line passing through the point (0, -5, -1) and parallel to the vector

−

i

+5

−

j

−6

−

k

.
Then the length of the projection of the unit normal vector to the plan Π on the line L is