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Multiplication of real valued square matrices of same dimension is :

(A)Commutative

(B)Associative

(C)Always positive definite

(D)Not always possible to compute
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Associative is guaranteed. (B) should be the answer.

$\because A*(B*C) = (A*B)*C$
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Associative property holds for all matrix multiplication, u can try by taking $3$ 2x2 real valued matrices as well
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