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Let A be a matrix of size m xn. Show that AAT and AT A are both square matrices (equal number of rows and columns) (10 pts) I

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Ansi let A ain = 19, ar aiz... ... lą ar as az, az an, - an amr ---ama man sau 931 -- --. am. ar an . . . - a me A23 a., . .Thus AA is a square matvin of Size mam. and AA is a square matrix of Size nxn.

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