Question

How can you determine if a vector in R3 span two other vectors in R3?
For example;
[Pi, -1, -1] = ([0,1,0], [0, 0, 1])
well, in this particular case, since both the "basis" vectors have zero <b>i</u> components, no combination of them can produce π in the result.

More generally, check your text, or try google.

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