化简lg根号2+lg根号5
2(lg根号2)²+lg根号2*lg5+lg(5根号2)=?
求化简 2(lg根号2)的方+lg根号2乘以lg根号5+根号下((lg根号2)方-lg2+1)
1.2(lg根号2)的平方+lg根号2乘以lg根号5+根号下((lg根号2)平方-lg2+1)
计算:2(lg根号2)^2+lg根号2×lg5+根号{(lg根号2)^2-2lg根号2+1}
(lg根号27+lg8-lg根号1000)/lg1、2
lg根号5等于几
求值:2(lg根号2)^2+lg根号2*lg5+1-lg根号2
lg(4倍根号2/7)-lg(8的2/3次方)+lg(7倍根号5)等于
(lg根号27+lg5-lg10根号2)/lg1.5
化简:(lg根号27+lg8-lg根号1000)/lg1.2
lg3+(2/5)lg9+(3/5)lg根号27-lg根号3
lg(根号6-根号5)与lg(根号6+根号5)的等差中项为