8. (2 points) Suppose A and B are n x n matrices that are not equal to each other. Circle any statement below that is
8. (2 points) Suppose A and B are n x n matrices that are not equal to each other. Circle any statement below that is true. . AB and BA are equal. . AB and BA might be equal. . AB and BA are not equal. 9. (2 points) Suppose A is an m x n matrix. Circle any statement below that is true. . AT A is always defined. . AAT is always defined. . AT A is not always defined. . AA is not always defined
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