A square matrix is semimagic if the rows and columns add to the same value, that is,
Question:
(a) Show that the set of semimagic squares Hn is a subspace of Mn×n.
(b) Show that the set Hn,0 of n×n semimagic squares with magic number 0 is also a subspace of Mn×n.
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a The sum of two semimagic squares is semi...View the full answer
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