如题 lg2.lg50+lg5.lg20-2lg5.lg2 求大仙 回答的快有悬赏.为乘
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问道对数题 lg2*lg50+lg20*lg5-2lg5*lg2
lg2*lg50+lg5*lg20-2lg5*lg2
lg2*lg50-lg5*lg20-lg4
如题 lg2.lg50+lg5.lg20-2lg5.lg2 求大仙 回答的快有悬赏.为乘
计算 lg5×lg20-lg2×lg50-lg25
lg5 X lg20 - lg2 X lg50 - lg25
lg2·lg50-lg5·lg20-lg4
化简 lg2×lg50+lg25-lg5×lg20
求值lg2*lg50+lg5*lg20-lg100*lg2*lg5
lg2*lg50+lg25-lg5*lg20需要过程,谢谢~
lg2*lg50-lg5*lg20-lg4 最后答案是-1,
高一对数计算lg21*lg50+lg25-lg51*lg20=lg2*lg50+lg25-lg5*lg20=
lg2·lg50+lg5·lg20-lg100·lg5·lg2=?
(lg5)^2+lg2*lg50
(lg5)²+lg2×lg50
lg5*lg20+(lg2)^
(lg2)^2+lg5*lg20
(lg2)^2+lg20*lg5