求值 100^(1/2lg9-lg2)=
(lg3(lg2+lg5)/lg2lg5) *[ lg5(lg3+lg9)/lg3lg9]*lg2=(lg3+2lg3)
已知lg2=0.3010,lg3=0.4771,计算:(1)lg9/2;(2)lg3.6;(3)lg根号6/2
求值:(lg2)2=(lg5)2=lg2*lg25=
已知lg2=a,lg3=b,lg9/50等于
(lg3 /lg4)×(lg2 /lg9 )为什么等于1 /4
lg243/lg9求值
求值:lg25 lg2*lg50 (lg2)^2
(lg5)^2+lg2*lg50 求值
2(lg2)2+lg2•lg5+(lg2)2-lg2+1=lg2(2lg
(lg2^2+1)(lg2)^2+1=?
lg25+lg2*lg50+(lg2)^2+1=?
lg5*(1+lg2)+(lg2)^2=