Suppose A is a 3 x n matrix whose columns span R^3. Explain how to construct an n x 2 matrix D such that AD=I3?

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- February 18th 2009, 08:00 PMferrarri1500Matrix Problem
**Suppose A is a 3 x n matrix whose columns span R^3. Explain how to construct an n x 2 matrix D such that AD=I3?** - February 18th 2009, 09:30 PMmath2009
, Are you sure ?

We could do

To resolute is easy.