1.(lg5)2次方+lg2*lg50
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1.(lg5)2次方+lg2*lg50
1.(lg5)2次方+lg2*lg50
(lg5)²+lg2*lg50
=(lg5)²+lg2x(lg5*5*2)
=(lg5)²+lg2x(lg5+lg5+lg2)
=(lg5)²+2lg2lg5+(lg2)²
=(lg5+lg2)²
=(lg10)²
=1²
=1
lg2+lg5=lg(2*5)=lg10=1
lg2*lg50=lg2*lg(5*10)=lg2*(lg5+lg10)=lg2*lg5+lg2
(lg5)^2+lg2*lg5+lg2=lg5*(lg2+lg5)+lg2=lg5+lg2=1
1.(lg5)2次方+lg2*lg50
(lg5)^2+lg2*lg50
lg2*lg50+lg5*lg20-2lg5*lg2
(lg2)的2次方+lg2×lg5+lg50等于多少
(lg5)²+lg2×lg50
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=
一道高一对数运算题lg50+lg2*log5+(lg2)^2lg50+lg2*lg5+(lg2)^2
问道对数题 lg2*lg50+lg20*lg5-2lg5*lg2
(lg5)²+lg2×lg50=?
计算(lg5)^2+lg2·lg50
计算:(lg5)2+lg2*lg50=?
lg50+lg2*lg5+lg²2=?
(lg5)^2+lg2·lg50=?求救...