0.25^-2+(8/27)^-1/3-1/2lg16-2lg5+1=?
lg5(1-lg5)+2lg5根号2+lg2(1-lg5)
lg2(1+lg5)+(lg5)^2
(lg16+lg10000)lg5+4(lg2)^2-lg6+lg0.006 如何计算
[(lg2)^3+(lg5)^3-1]/[(lg2)^2+(lg5)^2-1]=多少 怎么算
lg2^2+lg2*lg5+lg5=lg2(lg2+lg5)+lg5
0.01^(-1/2)-log0.5底8+3^(log3底2)+(lg2)^2+lg2*lg5+lg5=?
(lg2)2[2lg5+1]+(lg5)2[2lg2+lg10]
(lg5)^2+lg5.lg2=
lg2+1/2lg5/2
1 (lg5)^2+lg50*lg2
对数运算:(lg5)的平方+lg2*lg50根号下(lg5的平方-2lg5+1)
2lg5=2(1-lg2)