log3 4 - log5 6
= log3 (3 × 1.33) - log5 (5 × 1.20)
= (1 + log3 1.33) - (1 + log5 1.20)
= log3 1.33 - log5 1.20
= lg1.33 / lg3 - lg1.20 / lg5
> 0
因为,lg1.33 > lg1.20 ,lg3 < lg5 ,
所以,log3 4 > log5 6
如果本题有什么不明白可以追问,
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