Consider the vector space V = P3 with F = R (see Ex. 2 of Chapter 1). Find a subset of {x +1, x – 2, 3, x – 4, 2x + 1, a? + x + 1, x? + 2, x? – 1} that is both spanning and linearly independent in V. You have to justify why your choice is indeed a spanning and linearly independent.

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