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Number of binary operations on the set $\{a, b\}$ are
(a) 10
(b) 16
(c) 20
(d) 8
(a) 10
(b) 16
(c) 20
(d) 8
Solution:
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Verified Answer
(c) Let * be a binary operations There are two element in the set $\{1,2\} \ldots$ No. of binary operations is $2^4=16$
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