lg2×lg2.5+lg0.2×lg40
lg2乘lg(5/2)+lg0.2乘lg40
lg2*lg5/2+lg0.2*lg40
(lg2)^2*lg250+(lg5)^2*lg40=
lg40除以lg2
lg2*lg2*lg250+lg5*lg5*lg40
lg5/lg2*lg0.5/lg25为什么得1/2?
[(lg2+lg5-lg1)/(2lg0.5+lg8)]*(lg32-lg2) 分步计算步骤,
2lg2+lg3除以2+lg0.36+2lg2
计算 (2lg2+lg3)/(1+lg0.6+lg2)
对数的计算题lg2·lg5/2+lg0.2·lg40 答案是25/2 请问该怎样算呀?写一下过程谢谢
lg0.5/lg0.9怎么化为-lg2/2lg3-1,要详细哦,跪求,对数
log2√5/56+log^14-1/2log2^35 (2lg2+lg3)/(2+lg0.36+2lg2)