Consider the matrix A = 231 1 0 2 0 3 -3 1 0 1 6 and the vector b = 2 1. Construct the augmented matrix [A]b] and use elementary row operations to transform it to reduced row echelon form. 2. Find a basis for the column space of A. 3. Find a basis for the null space of A. 4. Find the general solution to the linear system Ax = b. 5. Can you find a vector c such that Ax = c has no solution? Give your reason.