Question: Prove the associative law of multiplication for 2 2 matrices; that is, let and show that (AB)C = A(BC) a12 a21 a22 bir b12

Prove the associative law of multiplication for 2 Ã— 2 matrices; that is, let

and show that
(AB)C = A(BC)

a12 a21 a22 bir b12 21 22 C21 C22

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