lg20-lg2=?,

来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/20 00:47:20
lg20-lg2=?,lg20-lg2=?,lg20-lg2=?,lg20-lg2=lg20/2=lg10=1lg20-lg2=(1+lg2)-lg2=1

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

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

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