How do you find the vector perpendicular to the plane containing (-2,1,0), (-3,0,0), and (5,2,0)?
Let us name the given pts. contained in the plane, say
Then, clearly, both
From Vector Geometry , we remember that the Cross Product
of two vectors is perpendicular to each of them.
so, the Reqd.
It is note-worthy that all the pts.