(lg√2+lg3-lg√10)÷lg1.8

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 17:52:09
(lg√2+lg3-lg√10)÷lg1.8

(lg√2+lg3-lg√10)÷lg1.8
(lg√2+lg3-lg√10)÷lg1.8

(lg√2+lg3-lg√10)÷lg1.8
(lg√2+lg3-lg√10)÷lg1.8
=(1/2)(lg2+lg9-lg10)÷lg1.8
=(1/2)lg1.8÷lg1.8
=1/2

(lg√2+lg3-lg√10)/lg1.8
=[lg(√2*3)-1/2]/(lg18-lg10)
=[(lg18)/2-1/2]/(lg18-1)
=1/2

(lg√2+lg3-lg√10)÷lg1.8
=(1/2)(lg2+lg9-lg10)÷lg1.8
=(1/2)lg1.8÷lg1.8
=1/2