log5(35)-2log5(7/3)+log5(7)-log5(1.8)
=log5(35*(7/3)^(-2)*7/1.8)
=log5(25)
=2
計(jì)算：log5為底35的對(duì)數(shù)-2log5為底3分之7的對(duì)數(shù)+log5為底7的對(duì)數(shù)-log5為底1.8的對(duì)數(shù)
計(jì)算：log5為底35的對(duì)數(shù)-2log5為底3分之7的對(duì)數(shù)+log5為底7的對(duì)數(shù)-log5為底1.8的對(duì)數(shù)
數(shù)學(xué)人氣：153 ℃時(shí)間：2019-11-05 19:48:04
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