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Question
Let * be a binary operation on N given by a * b = HCF (a, b), a, b ∈ N. Write the value of 22 * 4.
Solution
Given: a * b = HCF (a, b)
Here,
22 * 4 = HCF (22, 4)
= 2 [because highest common factor of 22 and 4 is 2]
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