2 -3 -1 2
(1) IfA= 5 -4. B= 2 2 2 and
-6
6 1
0 3
4 31
C = -1 4 Show that (i) A+B = B+A
-2 1
(ii) (A+B)+C = A+(B+C)
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2 -3 -1 2
(1) IfA= 5 -4. B= 2 2 2 and
-6
6 1
0 3
4 31
C = -1 4 Show that (i) A+B = B+A
-2 1
(ii) (A+B)+C = A+(B+C)
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