log2(5) ×log5(8)=3步骤_数学解答

log2(5) ×log5(8)=3步骤

人气：239 ℃　时间：2020-02-05 18:29:59

解答

log2(5) ×log5(8)
=(lg5)/(lg2)×(lg8)/(lg5)
=(lg8)/(lg2)
=(lg2^3)/(lg2)
=3lg2/lg2
=3