1 2 2 3 and b = 7 Consider a linear system Ax = b where A = 4 1. Find the reduced row echelon form of A and rank(A). 2. Determine whether the system is consistent. If yes, find the general solution to Ax = b. 3. Find a basis and the dimension for each subspace: Col(A), Row(A) and Nul(A).

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