Question

Find the distance of a point (1, 2, 3) from the plane x + 2y + 2z + 16 = 0​

Answer 1

Answer:

Sol. d = mod[ ( 1 + 2(2) + 2(3) + 16 ) /√[ (1)² + (2)² + (2)² ] ]

=> d = mod[ ( 27 ) / 3 ]

=> d = 9