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Q.

If the matrices A=aij and B=bij and C=cij are of the same order, say m × n, satisfy Associative law, then

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a

(A+B)+C=A+(B+C)

b

A+C=B+C

c

A+B=B+C

d

A+B+C=ABC

answer is A.

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Detailed Solution

Associative law: For any three matrices A=aij,

B=bij and C=cij of the same order, say m × n,

(A+B)+C=A+(B+C)

Now, (A+B)+C=aij+bij+cij

=aij+bij+cij=aij+bij+cij=aij+bij+cij=aij+bij+cij=A+(B+C)

 

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