1.

The plane x - 2y + 7z + 21=0

Answer»

contains the LINE `(x+1)/(-3) = (y-3)/(2) = (z+2)/(1) `
contains the point `(0,7,-1)`
is PERPENDICULAR to the line `x/1 = (y)/(-2) = z/7`
is parallel to the plane `x - 2Y +7z =0`

Answer :A::B::C::D


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