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Question
If A = `[(1, 9),(3, 4),(8, -3)]`, B = `[(5, 7),(3, 3),(1, 0)]` then verify that A + B = B + A
Solution
A + B = `[(1, 9),(3, 4),(8, -3)] + [(5, 7),(3, 3),(1, 0)]`
= `[(6, 16),(6, 7),(9, -3)]` ...(1)
B + A = `[(5, 7),(3, 3),(1, 0)] + [(1, 9),(3, 4),(8, 3)]`
= `[(6, 16),(9, 7),(9, -3)]` ....(2)
From (1) and (2) we get A + B = B + A
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