2. Consider the following matrix and its RREF [40-8-1 6 3 3 A = 3 1 -2 4 1 1 0 0 3 -1 0 2 43 4 -2-9 30-6 06 Explain all your answers (a) Determine a basis for Col(A) (b) Determine a basis for Nul(A). (c) Determine rank(A) and nullity(A). RREF 1 0-2 0 0 1 0 00 01 00 00 00 74000 28410 01 -3 0 0 1 0

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