1.计算:(lg2)2+lg5·lg20-12.已知 ,,且 ,求实数 的取值范围3.求函数在区间上的值域.20.已知. (1)求f(x)的解析式;(2)判断f(x)的奇偶性;(3)判断f(x)的单调性,并证明.
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lg5·lg20+(lg2)^2
(lg2)^2+lg5*lg20
(lg2)^2+lg20*lg5
(lg2)^2+lg5·lg20-1=?
lg20乘lg5的计算lg20乘lg5为什么等于(1+lg2)*(1-lg2)
lg2*lg50+lg5*lg20-2lg5*lg2
(lg2)*(lg2)+lg5*lg20-1怎么计算
lg5^2+lg4+lg5*lg20+(lg2)^2
(lg2)^2+lg20*lg5+(lg5)^2
lg5^2+lg4+lg5*lg20+(lg2)^@
lg^2 5+lg2*lg5+lg20=计算
计算 lg5×lg20-lg2×lg50-lg25
(lg2)^2+lg25+2/3lg8+lg5*lg20=?
lg25+2/3lg8+lg5*lg20+(lg2)^2=?
简单对数运算lg5*lg20+(lg2)^2=?
问道对数题 lg2*lg50+lg20*lg5-2lg5*lg2
lg2·lg50-lg5·lg20-lg4
(lg2)的平方+lg20×lg5答案,