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Question

The greatest integer less than 1log2π+1log6π is

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Solution

Let y=1log2π+1log6π

Using logab=1logba

y=logπ2+logπ6=logπ(2×6)(loga+logb=log(ab))

y=logπ12

πy=12

we know, π2<12<π32<y<3

Thus, the greatest integer less than y is 2.

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