Let

v1 = (1, 0, −1)

v2 = (0, 2, 2)

v3 = (−3, 4, 7)

and let W = Span{v1, v2, v3}.

Show that W = Span{v1, v2}?
How would I go by doing this?
Thanks in advance.

2 answers

isnt 2v2-3v1=v3 ?
Yes