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Exercise 3.1.24

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The column space of $AB$ is contained in (possibly equal to) the column space of $A$ . The example $B =$ zero matrix and $A \neq 0$ is a case when $AB =$ zero matrix has a smaller column space (it is just the zero space $Z$ ) than $A$ .

mathchakra

2022-01-16 13:26

Exercise 3.1.24

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