1.

State with reason, whether the following are true or false, A,B, and C are matrices of order 2 xx 2 (i) A.B=B.A (ii) A. (B.C)=(A.B).C (iii) (A+B)^2=A^2+2AB+B^2 (iv) A.(B+C)=A.B+A.C

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ANSWER :(i) False, (ii) TRUE, (iii) False, (IV) True


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