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True or False? (Make sure to justify your answer.) For this question let ?A be a...

True or False? (Make sure to justify your answer.)

For this question let ?A be a non-zero ?×?m×n matrix, and ?B an invertible ?×?n×n matrix.

If {?1,...,??}{x1,...,xk} is a basis for null(?)null(A), then dim(null(??))=?dim(null(AB))=k.

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