Which of the following are subspaces of Mi?? Support your answer. (a) (b) U = {A |
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(a)
(b) U = {A | A in M22, AB = 0}, B a fixed 2 Ã 2 matrix
(c) U = {A | A in M22, A is not invertible}
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a+b-r+d;a,b, c, and d in R
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a Yes Clearly are in U then is in U because a a 1 b b 1 a b a 1 b 1 c d c 1 d 1 c c 1 d d 1 is ...View the full answer
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