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JEE Main 2024 Mathematics question

MathematicsThree Dimensional GeometryJEE Main 2024

Consider a line L passing through the points P(1, 2, 1) and Q(2, 1, −1). If the mirror image of the point A(2, 2, 2) in the line L is (α, β, γ), then α + β + 6γ is equal to …..

Answer: 6

Solution

Direction (1, −1, −2); the foot F of the perpendicular from A is (5/6, 13/6,

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Question ID VK-011396