This can be a great way to check your work or to see how to Find k such that nul a is a subspace of rk.
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Example 6: Given , find k such that Nul A is a subspace of and then find k such that Col A is a subspace of . Page 5 of 7 . The matrix A is 4x2. Nul A is a subspace of and Col A is a
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