(lg5)^2 +2(lg)^2 +1-(lg2)^2
lg^2(2)+lg2乘lg5+lg5
lg^2(5)+lg2+lg2乘lg5等于多少?
lg2×lg5=?lg2×lg5=lg?求问号..是lg(2+5)吗?
1.lg²5+lg2×lg5+lg2 2.(lg2)³ +(lg 5)³ +3lg 2×l
(lg)^2+lg2*lg25+(lg5)^2等于多少?
(lg²2-lg2*lg5+lg²)+3lg2*lg5
lg(√2)^2+1/2lg2*lg5+√((lg√2)^2-lg2+1)
(lg√2)^2+1/2lg2*lg5+√(lg√2)^-lg2+1 化简求值
(lg5)2+lg2*lg5=?
lg^2 5+lg2*lg5+lg2=?
lg5+2lg2+(lg2)=?
是表示lg2乘lg5还是表示lg(2lg5)?