Question: For the matrices in Exercises 1-2, (a) find k such that Nul A is a subspace of Rk, and (b) find k such that Col

For the matrices in Exercises 1-2, (a) find k such that Nul A is a subspace of Rk, and (b) find k such that Col A is a subspace of Rk.
1.
For the matrices in Exercises 1-2, (a) find k such

2.

For the matrices in Exercises 1-2, (a) find k such

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