I'm stuck on the following problem:(adsbygoogle = window.adsbygoogle || []).push({});

Describe the span of the vectors u1 and u2 in R^3, where

u1 = (1, 1, 1), u2 = (1, −1, 1)

I know that the span is a(u1)+b(u2), which becomes (a+b,a-b,a+b), but I don't know where to go from here.

TIA.

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# Span of vectors

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