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If A=[(2, 3),( 5 ,7)] , B=[(-1 ,0, 2),(...

If `A=[(2, 3),( 5 ,7)]` , `B=[(-1 ,0, 2),( 3, 4, 1)]` , `C=[(-1, 2 ,3),( 2 ,1, 0)]` , find `A+B` and `B+C` (ii) `2B+3A` and `3C-4B` .

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