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4. (7 pts) Find the characteristic equation and the real eigenvalues of the matrix A= [ 4 0 -1 ] 0 4 -1 . [102] is 5. (8 pts)

Linear Algebra -- Please show work on both questions. I will upvote for both questions

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4 An ra 0 -17 Toual Li oz] characteristic eqn is det CA-21)=0 ire.ru-no-1 det To 4-0 4 1 0 . ili o 2-71) (4-0) [64-8)(2-8) +0

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