(lg根号27+lg8+lg根号1000)/lg120求值,要求写出步骤,

问题描述:

(lg根号27+lg8+lg根号1000)/lg120求值,要求写出步骤,

原式等于=3lg√3+3lg2+3lg√10/lg120
=3(lg√120)/lg120
=3*1/2=3/2