Find an equation of the plane that contains the origin and is parallel to the line with parametric equations x=4+2t, y=3-t,z=-2+t and to the line with vector equation r(t)=(4,2,1)+t(1,-2,3).
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The normal vector for the plane is .
Now you write the equation of the plane with thise normal that contains the point (0,0,0).
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