(2lg5·2lg2·2lg3)/(lg5·lg2·lg3)=
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(2lg5·2lg2·2lg3)/(lg5·lg2·lg3)=
lg²2+lg2·lg5+lg5=____________
(2lg5·2lg2·2lg3)/(lg5·lg2·lg3)=是得8还是2?
(lg²2-lg2*lg5+lg²)+3lg2*lg5
(lg^2)2+lg2*lg5+lg5
lg²2+lg2×lg5+lg5
(lg3(lg2+lg5)/lg2lg5) *[ lg5(lg3+lg9)/lg3lg9]*lg2=(lg3+2lg3)/2lg3,分解因式,怎么分解的{[lg3(lg2+lg5)/lg2lg5)] * [ lg5(lg3+lg9)/lg3lg9]}*lg2 = (lg3+2lg3)/2lg3,分解因式,怎么分解的
lg^2 5+lg2*lg5+lg2=?
lg^2 2+2lg5+lg2·lg50
lg^2(5)+lg2+lg2乘lg5等于多少?
lg25+2/3lg8+lg5×lg20+^2=多少?lg2×lg3/lg^2=多少?
lg2×lg5=?lg2×lg5=lg?求问号..是lg(2+5)吗?
(1)已知lg2=a,lg3=b,试用a,b表示对数lg18/25 (2)(lg5)^2+lg2·lg50(3)lg[(根号下,3+根号5)+(根号下,3-根号5)]
(lg5)2+lg2·lg5+lg2等于什么lg5的平方加上lg的2次幂乘lg的5次幂再加上lg的2次幂
2lg5/lg2*2lg2/lg3*2lg3/lg5=多少,
lg^2 5+lg5*lg2+lg2 怎么算lg^2 5+lg5*lg2+lg2 怎么算
计算:|lg2-lg^2(5)|+lg2·lg50+√(lg5-1)^2
lg5·lg20+(lg2)^2