(lg3+2lg2-1)除以lg1.2=?

2025-06-21 23:46:20
推荐回答(1个)
回答1:

(lg3+2lg2-1)/lg1.2
=(lg3+lg4-lg10)/lg1.2
=(lg12-lg10)/lg1.2
=lg1.2/lg1.2
=1