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8 problems: (1-2) Find eigenvalues (characteristic equation): A=[[3,0],[0,5]], A=[[2,1],[0,3]]. (3-4) Find eigenvalues AND eigenvectors: A=[[4,2],[1,3]], A=[[1,4],[2,3]]. (5) 'A has eigenvalues 2 and -1. What are eigenvalues of A²?' (4 and 1). (6) 'Eigenvalues of A are 3,5. What is det(A)?' (15 = pr

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