UPSKILL MATH PLUS
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Learn moreIf \(X = \{-5, 1, 3, 4\}\) and \(Y = \{a, b, c\}\), then which of the following relations are functions from \(X\) to \(Y\)?
(i) \(\mathbb{R}_1 = \{(-5, a), (1, a), (3, b)\}\)
(ii) \(\mathbb{R}_2 = \{(-5, b), (1, b), (3, a), (4, c)\}\)
(iii) \(\mathbb{R}_3 = \{(-5, a), (1, a), (3, b), (4, c), (1, b)\}\)
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