lg^2 5+lg2*lg5+lg20=
3个回答
lg5(lg5+lg2)+lg10 +lg2
=lg5(lg10)+1+lg2
=lg5+lg2+1
=lg10+1
=1+1
=2
相关问题
lg2*lg50 + lg20*lg5 - 2lg5*lg2=?
为什么lg5·lg20=lg5(2lg2+lg5)
2lg5+lg20=?lg5*lg20=?
lg5^2+lg4+lg5*lg20+(lg2)^@
lg5^2+lg4+lg5*lg20+(lg2)^2
(lg2)^2+lg20*lg5+(lg5)^2
求值lg2*lg50+lg5*lg20-lg100*lg2*lg5
lg5^2+2/3lg8+lg5*lg20+（lg2）^2=?
lg2^2+lg2*lg5+lg5=lg2(lg2+lg5)+lg5
lg25+lg4+lg5*lg20+(lg2)^2