A square matrix P is called idempotent if P 2 = P. (a) Find all 2
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A square matrix P is called idempotent if P2 = P.
(a) Find all 2 × 2 idempotent upper triangular matrices.
(b) Find all 2 × 2 idempotent matrices.
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ANSWER a Let P a b 0 d be a 2 2 idempotent upper triangular matrix Then we have P2 a b 0 d a ...View the full answer
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