With A as in Exercise 18, find a nonzero vector in Nul A
Chapter 4, Problem 22E(choose chapter or problem)
With A as in Exercise 18, find a nonzero vector in Nul A and a nonzero vector in Col A.Exercise 18:For the matrices in Exercises 17–20, (a) find ksuch that Nul A is a subspace of , and (b) find k such that Col A is a subspace of
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