Let (i). Write down necessary and sufficient conditions on the entries a, b, c, d that ensures
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Let
(i). Write down necessary and sufficient conditions on the entries a, b, c, d that ensures that A has only real eigenvalues.
(ii).Verify that all symmetric 2 × 2 matrices satisfy your conditions.
(iii). Note down a non-symmetric matrix that full fill your conditions.
Transcribed Image Text:
a A = c d
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