lg5乘以lg8000 等于多少?

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/04 04:38:33
lg5乘以lg8000 等于多少?
x)I7}sƓKs- |YO7LI*'BΆHSl usҍ\:[ mlk Q@&Le`Xf4LY,DXXč3/.H̳9 UT

lg5乘以lg8000 等于多少?
lg5乘以lg8000 等于多少?

lg5乘以lg8000 等于多少?
lg5=1-lg2
lg8000=lg8+3=3lg2+3=3(1+lg2)
lg5·lg8000
=(1-lg2)[3(1+lg2)]
=3-3(lg2)^2