If \( A=\{a, b, c, d\} \) and \( B=\{1,2,3\} \), then which of the
following is a relation from .... VIDEO
If \( A=\{a, b, c, d\} \) and \( B=\{1,2,3\} \), then which of the
\( \mathrm{P} \)
following is a relation from \( A \) to \( B \) ?
(1) \( R_{1}=\{(a, 1)(2, b),(c, 3)\} \)
(2) \( R_{2}=\{(a, 1)(d, 3),(b, 2),(b, 3)\} \)
(3) \( R_{3}=\{(1, a)(2, b),(3, c)\} \)
(4) \( R_{4}=\{(a, 1)(b, 2),(c, 3),(3, d)\} \)
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