- #1
JameB
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Homework Statement
I was wondering if someone could explain the easiest way to determine if a set S spans V?
some example questions would be: show that S = {v1, v2, v3, v4} spans R4 where
v1 = [1 0 +1 0]
v2 = [0 1 -1 2]
v3 = [0 2 +2 1]
v4 = [1 0 0 1]
Homework Equations
The Attempt at a Solution
I know that you need to let x = [a, b, c, d] be any vector in R4 and form an eqn like
a1v1 + a2v2 + a3v3 + a4v4 = x
but now I'm lost... please help!