Find a and that solve the vector equation: a) Suppose the above equation is expressed as Ax = b with x = coeffieints of the equations in one matrix form as (Ab)= b) c) d) Rows: 21 a (²) + ² (1) = (²1) 28 α = B = 2 Columns: 3 Complete the missing column of the following matrix derived by doing row operation of the augmented matrix in a): 1 -2 (9) 0 1 Express the

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