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RELATIONS AND FUNCTIONS — MATHS STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceMATHSRELATIONS AND FUNCTIONS1 Mark
Question
Define a binary operation on a set.
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Answer

Let A be a non-empty set. An operation * is called a binary operation on A, if and only if $\text{a}\times\text{b}\in\text{A},\forall\text{a},\text{b}\in\text{A}$

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