(lg5)^2+lg2×lg50=?
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(lg5)^2+lg2×lg50=?(lg5)^2+lg2×lg50=?(lg5)^2+lg2×lg50=?(lg5)^2+lg2*(lg5+lg5+lg2)=(lg5)^2+2lg2*lg5+(lg
(lg5)^2+lg2×lg50=?
(lg5)^2+lg2×lg50=?
(lg5)^2+lg2×lg50=?
(lg5)^2+lg2*(lg5+lg5+lg2)=(lg5)^2+2lg2*lg5+(lg2)^2=(lg2+lg5)^2=lg10的平方=1
(lg5)²+lg2×lg50=(lg5)²+lg(10÷5)×lg(10×5)=(lg5)²+(1-lg5)(1+lg5)
=(lg5)²+1-(lg5)²=1
(lg5)^2+lg2×lg50=?
(lg5)^2 + (lg2)*(lg50)=
(lg5)^2+lg2*lg50=
lg50+lg2*lg5+(lg2)^2=
(lg5)^2+lg2*lg50
计算:(lg5)2+lg2*lg50=?
lg50+lg2*lg5+lg²2=?
(lg5)^2+lg2·lg50=?求救...
lg2*lg50+lg5*lg20-2lg5*lg2
(lg5)²+lg2*lg50=?
化简 (lg5)^2+(lg2)lg50
(lg5)^2+lg2*lg50 求值
2【lg5】^2+2lg2•lg50=?
问道对数题 lg2*lg50+lg20*lg5-2lg5*lg2
(lg5)的平方+lg2*lg50=多少?
(lg5)²+lg2×lg50=?
计算(lg5)^2+lg2·lg50
1.(lg5)2次方+lg2*lg50