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Question
If A = `[(1, -2),(3, 0)], B = [(0, -2),(2, 1)]` find AB.
Sum
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Solution
AB = `[(1, -2),(3, 0)] [(0, -2),(2, 1)]`
= `[(1 xx 0 + (-2) xx 2, 1 xx (-2) + (-2) xx 1),(3 xx 0 + 0 xx 2, 3 xx (-2) + 0 xx 1)]`
= `[(-4, -4),(0, -6)]`
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