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If a plane passing through the point 2,2,1 and is perpendicular to the planes 3x+2y+4z+1=0 and 2x+y+3z+2=0. Then, the equation of the plane is

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Important Questions on Three Dimensional Geometry

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The direction cosines of line which is perpendicular to the lines whose direction cosines are proportional to 1,-1,2 and 2,1,-1 are
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A variable plane remains at constant distance p from the origin. If it meets coordinate axes at points A,B,C then the locus of the centroid of ΔABC is 
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The co-ordinates of the foot of perpendicular from the point A1,1,1 on the line joining the points B1,4,6 and C5,4,4 are