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" 2.If "A=[[1,1,1],[1,1,1],[1,1,1]]," pr...

" 2.If "A=[[1,1,1],[1,1,1],[1,1,1]]," prove that "A^(n)=[[3^(n-1),3^(n-1),3^(n-1)],[3^(n-1),3^(n-1),3^(n-1)],[3^(n-1),3^(n-1),3^(n-1)]],n in N

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