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Mathematics, 17.07.2019 19:10 emilyanneK236

3. (a) let a be a nxn matrix whose column space is not equal to r". what can you say about the null space of a, n(a)? (b) if an nxn matrix a has a mull space that is not trivial (not the zero space), does ax b have a solution for any b in r"?

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