Asked by jen
Let A be a 5 by 4 matris and suppose that the system Ax=b has a solution. Explain why the solution is unique if and only if the rank of A is 4.
I said that it is unique becaue the rank is equal to the number of columns.
Do you have a better explaination.
I said that it is unique becaue the rank is equal to the number of columns.
Do you have a better explaination.
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