lg4+lg5.lg20+(lg5)2
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 07:52:45
lg4+lg5.lg20+(lg5)2
lg4+lg5.lg20+(lg5)2
lg4+lg5.lg20+(lg5)2
=2㏒2+㏒5*(㏒4+㏒5)+㏒5*㏒5
=2㏒2+㏒5(㏒2+㏒2+㏒5)+㏒5*㏒5
=2㏒2+㏒5*(㏒2+1)+㏒5*㏒5
=2㏒2+㏒5*(㏒2+1+㏒5)
=2㏒2+2㏒5
=2(㏒2+㏒5)
=2
lg4+lg5(lg20+lg5)=lg4+2lg5=lg100=2
lg4+lg5.lg20+(lg5)2
lg4+lg5.lg20+(lg5)2
lg5^2+lg4+lg5*lg20+(lg2)^2
lg5^2+lg4+lg5*lg20+(lg2)^@
lg2*lg50-lg5*lg20-lg4
lg25+lg4+lg平方2+lg5*lg20等于多少?
2lg5+lg20=?lg5*lg20=?
lg2·lg50-lg5·lg20-lg4
(lg2)^2+lg5*lg20
(lg2)^2+lg20*lg5
lg4+lg5lg20+(lg5)^2
lg5/2+lg4=?
对数lg2*lg5=?2lg(5)+2/3 lg8+lg5*lg20+lg2 =lg5^2+lg8^(2/3)+lg5*(lg4+lg5)+lg2 =lg100+lg5+2lg2*lg5+lg2 =2+(lg5+lg2) =2+1 =3 第二个等号lg5*(lg4+lg5)为什么=lg5+2lg2*lg5
lg20+lg5
(lg2)^2+lg20*lg5+(lg5)^2
lg2*lg50+lg5*lg20-2lg5*lg2
计算(lg5)^2+lg4*lg5+(lg2)^2
(lg5)^2+lg4*lg5+(lg2)^2