Let a1 and a2 be linearly independent vectors in R3, and let x be a vector in
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(a) Describe geometrically Span(a1, a2).
(b) If A = (a1, a2) and b = Ax, then what is the dimension of Span(a1, a2, b)? Explain.
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a If a 1 and a 2 are linearly independent then they span ...View the full answer
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