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प्रश्न
Let * be a binary operation defined on Q. Find which of the following binary operations are associative
a * b = `"ab"/4` for a, b ∈ Q.
योग
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उत्तर
* is associative since Q is associative with respect to multiplication.
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अध्याय 1: Relations And Functions - Solved Examples [पृष्ठ ८]
