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OpenStudy (anonymous):
Let A be an n x n matrix with eigenvalue 3 and let I be the n x n identity matrix. which of the following are true.(1) 4 is an eigenvalue of A+I . (2)A+3I is invertible. (3) 9 is an eigenvalue of A^2. (4) 6 is an eigenvalue of 2A
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OpenStudy (loser66):
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