1. Consider the following matrices: (b) [2 0 1 -2 ------# C= 1 3 D= 3 2 0 -1 -1 (c) A = 53 Evaluate, if possible, If not possible, give reason(s). (a) 3A + 20¹t Bt A² - 5A + I B = 3DB+101 1 -3 [1 2 3 1 0 0

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