lg^2(5)+lg2+lg2乘lg5等于多少?
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lg^2(5)+lg2+lg2乘lg5等于多少?
lg^2(5)+lg2+lg2乘lg5等于多少?
lg^2(5)+lg2+lg2乘lg5等于多少?
lg^2(5)+lg2+lg2乘lg5
=lg^2(5)+lg2乘lg5+lg2
=lg5*(lg5+lg2)+lg2
=lg5*lg(5*2)+lg2
=lg5*lg10+lg2
=lg5*1+lg2
=lg(5*2)
=lg10
=1
=lg2(5)*2*2+5=lg2(7)+5
lg^2(5)+lg2+lg2乘lg5
=lg5(lg5+lg2)+lg2
=lg5+lg2
=1
原式=(2lg5+lg2+lg2)*lg5
=【lg(5*5*2*2)】*lg5
=lg100*lg5
=2lg5
lg^2(5)+lg2+lg2*lg5
=lg5(lg5+lg2)+lg2
=lg5*lg10+lg2
=lg5+lg2=lg10=1
lg^2(5)+lg2+lg2乘lg5等于多少?
lg^2 5+lg2*lg5+lg2=?
lg^2 5+lg5*lg2+lg2 怎么算lg^2 5+lg5*lg2+lg2 怎么算
lg2×lg5=?lg2×lg5=lg?求问号..是lg(2+5)吗?
lg^2 (5)+(2lg5+lg2)乘lg2=1的具体步骤是?
求值lg的平方2+lg2乘lg5+lg5
lg²5+lg2+lg2*lg5?
lg²5+lg2×lg5+lg2
lg5×lg(5×2)+lg2怎莫算具体
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+lg²)+3lg2*lg5
lg^2(2)+lg2乘lg5+lg5 如题…
是表示lg2乘lg5还是表示lg(2lg5)?
1.lg²5+lg2×lg5+lg2 2.(lg2)³ +(lg 5)³ +3lg 2×lg 5 3.7 的lg20次方×4.lg500+lg8/5-1/2lg64+50(lg2+lg5)²1.lg²5+lg2×lg5+lg2 2.(lg2)³ +(lg 5)³ +3lg 2×lg 53.7 的lg20次方×(1/2)的lg0.7次方
(lg^2)2+lg2*lg5+lg5
lg²2+lg2×lg5+lg5
lg2 2+lg4*lg5+lg2 (注:lg2指lg的平方)
求值 :lg5²+lg2*lg50+(lg2)²答案写;2lg5+lg2*lg(5*10)+(lg2)²①=2lg5+lg2*lg5+lg2+(lg2)² ②=2lg5+lg2*(lg5+lg2)+lg2③ .第 ②步怎么得到的怎么就变成了lg2*lg5+lg2?