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Proof for theorem

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asked Jun 6, 2023 in Matrices by Oh oh (125 points)
recategorized Jun 7, 2023 by faiz

Theorem:

A(adj A) = (adj A)A = |A| identity matrix

Proof:

In proof, they have used 3×3 square matrix. Can someone explain this theorem using 2×2 matrix.

class-12
chapter 1
theorem 1.1

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