(lg根号8+lg27-lg根号1000)÷lg1.8 化简求值
问题描述:
(lg根号8+lg27-lg根号1000)÷lg1.8 化简求值
答
=(3/2ln2+3ln3-3/2)/(lg18-1)
=3/2(ln2+2ln3-1)/(ln2+2ln3-1)
=3/2