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Question
If A = `[(3, 1),(-1, 2)], B = [(1, 0),(0, 2)]`, find AB.
Sum
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Solution
A = `[(3, 1),(-1, 2)], B = [(1, 0),(0, 2)]`
AB = `[(3 xx 1 + 1 xx 0, 3 xx 0 + 1 xx 2),(-1 xx 1 + 2 xx 0, -1 xx 0 + 2 xx 2)]`
= `[(3, 2),(-1, 4)]`
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