求解(lg5)^2+lg50*lg2最好把每一步都写出来
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求解(lg5)^2+lg50*lg2最好把每一步都写出来
求解(lg5)^2+lg50*lg2
最好把每一步都写出来
求解(lg5)^2+lg50*lg2最好把每一步都写出来
(lg5)^2+lg50*lg2
=(lg5)^2+(lg25+lg2)*lg2
=(lg5)²+lg5²lg2+(lg2)²
=(lg5)²+2lg5lg2+(lg2)²
=(lg5+lg2)²
=(lg10)²
=1²
=1
(lg5)^2+lg50*lg2
=(lg5)^2+(lg5+lg10)*lg2 因为lg10=1
=(lg5)^2+lg5*lg2+lg2
=lg5(lg5+lg2)+lg2 lg5+lg2=lg(5*2)=lg10=1
=lg5(lg10)+lg2
=lg5+lg2
=lg10=1=(l...
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(lg5)^2+lg50*lg2
=(lg5)^2+(lg5+lg10)*lg2 因为lg10=1
=(lg5)^2+lg5*lg2+lg2
=lg5(lg5+lg2)+lg2 lg5+lg2=lg(5*2)=lg10=1
=lg5(lg10)+lg2
=lg5+lg2
=lg10=1
收起
(lg5)^2+lg2*lg50
lg2*lg50+lg5*lg20-2lg5*lg2
求解(lg5)^2+lg50*lg2最好把每一步都写出来
化简 (lg5)^2+(lg2)lg50
(lg5)^2+lg2*lg50 求值
(lg5)^2+lg2×lg50=?
(lg5)^2 + (lg2)*(lg50)=
(lg5)^2+lg2*lg50=
lg50+lg2*lg5+(lg2)^2=
问道对数题 lg2*lg50+lg20*lg5-2lg5*lg2
计算(lg5)^2+lg2·lg50
1.(lg5)2次方+lg2*lg50
计算:(lg5)2+lg2*lg50=?
lg50+lg2*lg5+lg²2=?
(lg5)^2+lg2·lg50=?求救...
(lg5)²+lg2×lg50
计算(lg2)²+2lg2·lg5+(lg5)²+lg50-lg5求答案,
lg5²+lg2*lg50化简