Example CSOCD expresses the column space of the coefficient matrix from Arche-type D (call the matrix A here) as the span of the first two columns of A. In Example CSMCS we determined that the vector

was not in the column space of A and that the vector

was in the column space of A. Attempt to write c and b as linear combinations of the two vectors in the span construction for the column space in Example CSOCD and record your observations.

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