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 If the projection of the line x2=y12=z11 on a plane P is x1=y11=z11. Then the distance of plane P from origin is

a
3
b
32
c
6
d
23

detailed solution

Correct option is B

Projection of line x2=y−12=z−11 on a plane P is x1=y−11=z−1−1 Plane through these lines is perpendicular to the plane P Normal to the plane determined by the given lines isi^    j^    k^2    2    11    1    −1=−3i^+3j^Direction ratios normal to the required plane is Equation of the plane is x+y+2z−3=0 as it passes through 0,1,1 Its distance from origin is 32.

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