1. (a) Show that A = (12) and Q= (7) -1 Q-AQ = (% t) (89)....
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1. (a) Show that A = (12) and Q= (7) -1 Q-AQ = (% t) (89). Call the right-hand side D (for diagonal matrix). (b) Show that An = QDQ-1. (c) Deduce from (b) that lin 2 (1/2)=(1/72 1/12) 818 == 1 1 1. (a) Show that A = (12) and Q= (7) -1 Q-AQ = (% t) (89). Call the right-hand side D (for diagonal matrix). (b) Show that An = QDQ-1. (c) Deduce from (b) that lin 2 (1/2)=(1/72 1/12) 818 == 1 1
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