Problem4:Show that the line |
SOLUTION:
| The position vector u, velocity vector v for the line are: |
> u := [1,0,-1]: v := [3,-2,1]:
| A normal to the plane is: |
> n := [1,2,1]:
| We have, |
> dotprod(v,n);
0
| so the line is either parallel to the plane or the line is contained in the plane. But u doesn't belong to the plane so we are done. |