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JEE Advanced Mathematics question

MathematicsThree Dimensional GeometryJEE Advanced

If the distance of the point from the plane , where , is 5 then the foot of the perpendicular from to the plane is

Answer: (A)

Solution

Distance (as ).

The perpendicular from : $(x, y, z) = (1 + r, -2 + 2r, 1 -

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Question ID VK-110756