lg20-lg2=?,

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/03 09:21:16
lg20-lg2=?,

lg20-lg2=?,
lg20-lg2=?,

lg20-lg2=?,
lg20-lg2
=lg20/2
=lg10
=1

lg20-lg2
=(1+lg2)-lg2
=1