Question: Let A be a 3 x 4 matrix with reduced row echelon form given by 1 0 4 17 3 2 U = 01 1

Let A be a 3 x 4 matrix with reduced row echelon form given by "1 0 4 17 3 2 U = 01 1 1. If a1 = 1 , and a2 = -1 10 0 0 0 2 2 find a3 and a4. a3 = , 84 =Let A be a 4 x 5 matrix. If a1, a2, and a4 are linearly independent and a3 = a1 + 2a2, a5 = -3a1 - a2 + 4a4 determine the reduced row echelon form of A. U =

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