CBSE Class 12 Math 2012 Solved Paper

Question : 6

Total: 29

Let * be a ‘binary’ operation on N given by a * b = LCM (a, b) for all a, b ∊ N. Find 5 * 7.

Solution:

According to the given operation
5 * 7 = L.C.M.(5, 7) = 35

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