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if [{:(2,8),(-7,3):}]and B=[{:(-1,3),(2,...

`if [{:(2,8),(-7,3):}]and B=[{:(-1,3),(2,-4):}]`, then show that : (i) (A+B)'=A+B' (ii) (A+2B)'=A'+2B' (iii) (AB)'=B'A'

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