JEE Main 2026 Mathematics question
Let the point A be the foot of perpendicular drawn from the point P(a, b, 0) on the line . If the midpoint of the line segment PA is , then the value of a² + b² + α² is equal to:
Answer: (A)
Solution
Solving the perpendicularity and midpoint conditions gives a = 0, b = 0, α = 1, so a² + b² + α² = 1.