JEE Main 2021 Mathematics question
Let L be a line obtained from the intersection of two planes x + 2y + z = 6 and y + 2z = 4. If point P(, , ) is the foot of perpendicular from (3, 2, 1) on L, then the value of 21() equals
Answer: (C)
Let L be a line obtained from the intersection of two planes x + 2y + z = 6 and y + 2z = 4. If point P(, , ) is the foot of perpendicular from (3, 2, 1) on L, then the value of 21() equals