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if a= 1 2 2
2 1 2 show that A2-4A-5i=0
2 2 1
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Asked by dkittu40 | 09 Oct, 2023, 10:24: AM
Given: A = [1 2 2 // 2 1 2 // 2 2 1]
To prove that A2 - 4A - 5I = 0
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