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Question
Given `A = [(2,1),(3,0)]`, `B = [(1,1),(5,2)]` and `C = [(-3-1),(0 0)]` Find A + 2C - B
Solution
A + 2C - B
`= [(2, 1),(3, 0)] + 2[(-3,-1),(0,0)] - [(1,1),(5,2)]`
`=[(2,1),(3,0)] + [(-6,-2),(0,0)] - [(1,1),(5,2)]`
`= [(2 - 6 -1, 1-2-1),(3 + 0 - 5, 0 + 0 - 2)]`
`= [(-5,-2),(-2, -2)]`
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