(a) Show that an elementary lower triangular matrix of typek defined by Mk Mk = I+...

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In each case find an elementary matrix E such that B = EA. (a) (b) (c) (d) (e) (f) 2 3 -1 2 0 1 1-2 1-43 2 3 2 1 2
Show that if E is an elementary matrix then ET is an elementary matrix of the same type as E.
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