(lg5)2+lg2*lg5=?是(lg5)的平方
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(lg5)2+lg2*lg5=?是(lg5)的平方(lg5)2+lg2*lg5=?是(lg5)的平方(lg5)2+lg2*lg5=?是(lg5)的平方(lg5)2+lg2*lg5=lg5×(lg5+l
(lg5)2+lg2*lg5=?是(lg5)的平方
(lg5)2+lg2*lg5=?
是(lg5)的平方
(lg5)2+lg2*lg5=?是(lg5)的平方
(lg5)2+lg2*lg5
=lg5×(lg5+lg2)
=lg5×lg(5×2)
=lg5×lg10
=lg5×1
=lg5
(lg5)²+(lg2)(lg5)
=(lg5)(lg5+lg2)
=lg5
lg2×lg5=?lg2×lg5=lg?求问号..是lg(2+5)吗?
lg^2 5+lg2*lg5+lg2=?
对数lg2*lg5=?2lg(5)+2/3 lg8+lg5*lg20+lg2 =lg5^2+lg8^(2/3)+lg5*(lg4+lg5)+lg2 =lg100+lg5+2lg2*lg5+lg2 =2+(lg5+lg2) =2+1 =3 第二个等号lg5*(lg4+lg5)为什么=lg5+2lg2*lg5
lg²2+lg2·lg5+lg5=____________
(lg^2)2+lg2*lg5+lg5
lg²2+lg2×lg5+lg5
(lg5)^2+lg5.lg2=
lg50+lg2*lg5+lg²2=?
2lg2+lg5/lg√10=?
(lg^2)2+lg2*lg5+lg5=lg2(lg2+lg5)=lg2+lg5=1 为什么能把lg2提出来?lg2*lg10为什么等于lg2
(lg²2-lg2*lg5+lg²)+3lg2*lg5
是表示lg2乘lg5还是表示lg(2lg5)?
(lg5)2+lg2*lg5=?是(lg5)的平方
(lg2)^2+lg2*lg5+(lg5)^2=
lg²5+lg2*lg5+lg2=lg5²+1+lg2(里面的lg5²和1是怎么得的)要过程!
lg^2(5)+lg2+lg2乘lg5等于多少?
lg25+2/3lg8+lg5·lg20+lg^22我见到个过程是lg25+2/3lg8+lg5乘以lg20+lg^22=2lg5+2lg2+lg5*(2lg2+lg5)+lg2*lg2=2(lg5+lg2)+(lg5)^2+2lg2*lg5+(lg2)^2=2lg10+(lg5+lg2)^2=2+1^2=3 我想问一下,第3步怎么到第4步的?错了,是第2步怎么到第3
lg5+2lg2+(lg2)=?