2lg2+lg5/lg√10=?
lg^2 5+lg2*lg5+lg2=?
lg50+lg2*lg5+lg²2=?
lg2^2+lg2*lg5+lg5=lg2(lg2+lg5)+lg5
(lg2)^平方+(lg5)^平方+2lg*2lg5=?
lg²2+lg2·lg5+lg5=____________
2(lg2)2+lg2•lg5+(lg2)2-lg2+1=lg2(2lg
lg2×lg5=?lg2×lg5=lg?求问号..是lg(2+5)吗?
(lg²2-lg2*lg5+lg²)+3lg2*lg5
lg²2+lg2×lg5+lg²5=?
2lg2+lg5/lg根号下10的具体解法
(lg5)^2+lg5.lg2=
(lg2)^2+lg2*lg5+(lg5)^2=