lg1/4+lg1/9-2√(lg^(2)6-lg36+1)
(lg√27+lg8-3lg√10)/lg1.2
[lg8+lg跟号27-lg根号1000]除以lg1.2
(lg根号27+lg8-3lg根号10)除以lg1.2
计算(lg2/1+lg1+lg2+lg4+...+lg1024)×lg底数2
(lg根号27+lg8-lg根号1000)/lg1、2
计算:(lg√27+lg8+3lg√10)/lg1.2
1题 (lg根号2+lg3-lg根号10)/lg1.8
(lg根号27+lg5-lg10根号2)/lg1.5
化简:(1)4lg2+3lg5-lg五分之一,(2)(lg根号下27+lg8-lg根号下1000)比上(lg1.2)
【根号(lg的平方3-lg9+1)*(lg根号27+lg8-lg根号1000)】/(lg0.3)*(lg1.2)
计算:4lg1+lg2.5+lg4-(1/2)lg10^2
(lgx)/(lg1/2)=lg(x)/-(lg2)=-(lg(x)/lg(2))=-log2(x)