作业帮计算:(lg5)2+lg2*lg50=?
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计算:(lg5)2+lg2*lg50=?
计算:(lg5)2+lg2*lg50=?
计算:(lg5)2+lg2*lg50=?
(lg5)^2+lg2×lg50
=(lg5)^2+lg2×(lg5+lg10)
=(lg5)^2+lg2×(lg5+1)
=(lg5)^2+lg2×lg5+lg2
=lg5×(lg5+lg2)+lg2
=lg5×lg10+lg2
=lg5×1+lg2
=lg5+lg2
=lg10
=1
(lg5)^2+lg2*lg50
=(lg5)^2+lg(10/5)lg(10*5)
=(lg5)^2+(1-lg5)(1+lg5)
=(lg5)^2+[1-(lg5)^2]
=(lg5)^2+1-(lg5)^2
=1
这个是我们资料书上的答案(lg5)^2+lg2×lg50
=(lg5)^2+lg2×(lg5+lg10)
=(lg5)^2+lg2×(lg5+1)
=(lg5)^2+lg2×lg5+lg2
=lg5×(lg5+lg2)+lg2
=lg5×lg10+lg2=lg5×1+lg2=lg5+lg2=lg10=
1
计算:(lg5)2+lg2*lg50=?
(lg5)^2+lg2×lg50=?
(lg5)^2 + (lg2)*(lg50)=
(lg5)^2+lg2*lg50=
lg50+lg2*lg5+(lg2)^2=
计算（lg5)^2+lg2·lg50
（lg5)^2+lg2*lg50
lg2+lg50+lg5怎样计算
lg50+lg2*lg5+lg²2=?
(lg5)^2+lg2·lg50=?求救...
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化简 (lg5)^2+(lg2)lg50
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计算lg25+lg2*lg50+(lg2)^2答案是这么写的 =(lg2)^2+(1+lg5)*lg2+lg5^2=(lg2+lg5+1)lg2+2lg5=(1+1)lg2+2lg5=2(lg2+lg5)=2为什么算下来成了（1+lg5)lg2