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4. Let T = V1 3 2 13 8 2 8 -- { - - 0 - - 0 - - 0 - - (0) -- (0) --(0)} 1 1 3

V2 V3 = V4= , V5 2 , V6 (a) (3 points) Find a linearly independent subset S of T such that span(S) = span(T). (b) (3 points) Does T span the whole R4? If not, find a set T' containing T such that span(T) = R4.

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