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Let **be the binary operation on N give...

Let `**`be the binary operation on N given by `a**b = LCM`of a and b. Find (i) `5 ** 7, 20 ** 16`(ii) Is `*`commutative? (iii) Is `**`associative? (iv) Find the identity of `**`in N (v) Which elements of N are invert

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To solve the problem step by step, we will address each part of the question systematically. ### Given: The binary operation `**` on natural numbers \( \mathbb{N} \) is defined as \( a ** b = \text{LCM}(a, b) \). ### (i) Find \( 5 ** 7 \) and \( 20 ** 16 \). **Step 1:** Calculate \( 5 ** 7 \). ...
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