JEE Main 2025 Mathematics question
Let P be the image of the point Q(7, -2, 5) in the line L : and R(5, p, q) be a point on L. Then the square of the area of PQR is
Answer: 957
Solution
R = (5,5,8), foot of perpendicular T = (3,2,4), QT = √33, RT = √29. Area² = (1/2·√29·2√33)² = 957.