Ok, Calculus cross product question:
(I don't want the answer, just a hint or a little guidance)

Find two unit vectors that are normal to the plane determined by the points (0, -2, 1), B (1, -1, -2), and C (-1, 1, 0)

What I've tried so far:
I've tried just taking the cross product between two vectors, as it, by how I understand it, should be then normal to the whole plane determined by two points. Then I normalized it to be a unit vector. This did not work.

I even went back to my linear algebra book and found the basic for the row space thinking that might help. Nope.

Question

Ok, Calculus cross product question:
(I don't want the answer, just a hint or a little guidance)

Find two unit vectors that are normal to the plane determined by the points (0, -2, 1), B (1, -1, -2), and C (-1, 1, 0)

What I've tried so far:
I've tried just taking the cross product between two vectors, as it, by how I understand it, should be then normal to the whole plane determined by two points.  Then I normalized it to be a unit vector.  This did not work.

I even went back to my linear algebra book and found the basic for the row space thinking that might help.  Nope.

anonymous · Answer

I think I just figured out my problem. ..

anonymous · Answer

I need to take the difference of the points first, then use the cross product...

jamesj · Answer

The question is: what are two vectors in the plane ... right.

jamesj · Answer

Yes, exactly.

anonymous · Answer

:) !!!!!!

anonymous · Answer

Thanks