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if A=[(1,2),(3,4):}],B=[{:(-1,0),(2,3):}...

if `A=[(1,2),(3,4):}],B=[{:(-1,0),(2,3):}]and C=[{:(1,-1),(0,1):}],` then show that : (i) A(B+C)=AB+AC (ii) (A-B)C=AC-BC.

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