JEE Main 2026 Mathematics question
The square of the distance of the point P(5,6,7) from the line is equal to:
Answer: (C)
Solution
Vector from (2,5,2) to P is (3,1,5); projection onto direction (2,3,4) has squared length 29²/29=29. |PA|²=35, so distance² = 35−29 = 6.