- #1

penroseandpaper

- 21

- 0

I have calculated another basis of B, and found I can use linear combinations of the vectors in this basis to make each of the four vectors in A. But I'm not sure if I can use that as proof or if it means anything.

No answers being sought, simply a checklist of steps to take. The set notation including (x, y, z, x+y-z) has thrown me.

Penn