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Let f be a subset of Z×Z defined by f = {(ab, a + b): a, b ϵ Z}. Is f a function from Z to Z? Justify your answer. |
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Answer» Let f be a subset of Z×Z defined by f = {(ab, a + b): a, b ϵ Z}. Is f a function from Z to Z? Justify your answer. |
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