2lg5+lg20=?lg5*lg20=?
2个回答
lg5+2
lg5+1
相关问题
lg^2 5+lg2*lg5+lg20=
为什么lg5·lg20=lg5(2lg2+lg5)
lg2*lg50 + lg20*lg5 - 2lg5*lg2=?
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
为什么lg5*lg20=lg5*(1+lg2)
lg2·lg50-lg5·lg20-lg4
lg 5 lg 20-lg 2*lg 50-lg 25