lg50-lg5

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(lg5)^2+lg2*lg50

(lg5)^2+lg2*lg50(lg5)^2+lg2*lg50=(lg5)^2+lg2*(1+lg5)=(lg5)^2+lg2*lg5+lg2=lg5(lg5+lg2)+lg2=lg5+lg2=1两个

(lg5)²+lg2×lg50

(lg5)²+lg2×lg50(lg5)²+lg2×(lg5+lg5+lg2)=(lg5)²+2lg2×lg5+(lg2)^2=(lg2+lg5)^2=(lg10)^2=1

lg2*lg50+lg5*lg20-2lg5*lg2

lg2*lg50+lg5*lg20-2lg5*lg2lg2*lg50+lg5*lg20-2lg5*lg2=lg2*lg(5*10)+lg5*lg(2*10)-2lg5*lg2=lg2*(lg5+1)+lg5*(lg2+1)-2lg5*lg2

化简 (lg5)^2+(lg2)lg50

化简(lg5)^2+(lg2)lg50(lg5)^2+(lg2)lg50=(lg5)^2+(lg2)lg5*10=(lg5)^2+(1-lg5)(lg5+1)=(lg5)^2+[1-(lg5)^2]=1(lg5)^2+lg2*lg50=(l

(lg5)^2+lg2*lg50 求值

(lg5)^2+lg2*lg50求值=(lg5)^2+lg2*(lg5+1)=(lg5)^2+(1-lg5)(1+lg5)=(lg5)^2+1-(lg5)^2=1(lg5)²+lg2×lg50=(lg5)²+lg2×(l

(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)

(lg5)^2 + (lg2)*(lg50)=

(lg5)^2+(lg2)*(lg50)=(lg5)^2+(lg2)*(lg50)=(lg5)^2+(lg2)*(lg2*25)=(lg5)^2+(lg2)*(lg2+lg5^2)=(lg5)^2+2lg2lg5+(lg2)^2=(lg5+

lg5²+lg2*lg50化简

lg5²+lg2*lg50化简lg5²+lg2*lg50化简=lg5²+lg2(lg5×5×2)=lg5²+lg2(2lg5+lg2)=log5²+2×lg2×lg5+(lg2)²

lg2*lg50-lg5*lg20-lg4

lg2*lg50-lg5*lg20-lg4原式=lg2(lg5+lg10)-lg5(lg2+lg10)-lg4=lg2lg5+lg2lg10-lg5lg2-lg5lg10-lg4=lg2-lg5-lg4=lg(2÷5÷4)=lg(1/10)

lg2+lg50+lg5怎样计算

lg2+lg50+lg5怎样计算原式=lg2*50*5=lg500=2+lg5

(lg5)^2+lg2*lg50=

(lg5)^2+lg2*lg50=(lg5)^2+lg2*lg50=(lg5)^2+lg2*(lg5+1)=(lg5)^2+(1-lg5)(1+lg5)=(lg5)^2+1-(lg5)^2=1

(lg5)²+lg2×lg50

(lg5)²+lg2×lg50(lg5)²+lg2×lg50=(lg5)²+lg2×lg(5×10)=(lg5)²+lg2×(lg5+1)=(lg5)²+lg2×lg5+lg2=lg5×(l

(lg5)²+lg2*lg50=?

(lg5)²+lg2*lg50=?=lg5*lg5+lg2*lg(5*10)=lg5*lg5+lg2*(lg5+lg10)=lg5*lg5+lg2*(lg5+1)=lg5*(lg5+lg2)+lg2=lg5*lg10+lg2=lg

计算(lg5)^2+lg2·lg50

计算(lg5)^2+lg2·lg50(lg5)^2+lg2·lg50=(lg5)^2+lg2*lg2*25=(lg5)^2+lg2*(lg2+lg25)=(lg5)^2+(lg2)^2+lg2*lg5^2=(lg5)^2+2lg2lg5+(

lg50+lg2*lg5+(lg2)^2=

lg50+lg2*lg5+(lg2)^2=lg50+lg2*lg5+(lg2)^2=(lg2)^2+lg2lg5+lg(25*2)=(lg2)^2+lg2lg5+2lg5+lg2=lg2(lg+lg5)+2lg5+lg2=lg2*1+2lg

1.(lg5)2次方+lg2*lg50

1.(lg5)2次方+lg2*lg501.(lg5)2次方+lg2*lg50(lg5)²+lg2*lg50=(lg5)²+lg2x(lg5*5*2)=(lg5)²+lg2x(lg5+lg5+lg2)=(lg5)

计算 lg5×lg20-lg2×lg50-lg25

计算lg5×lg20-lg2×lg50-lg25原式=lg(2×50)-lg(5×20)-lg5^2=lg100-lg100-2lg5=-2lg5

lg5 X lg20 - lg2 X lg50 - lg25

lg5Xlg20-lg2Xlg50-lg25注意lg2+lg5=lg10=1lg5Xlg20-lg2Xlg50-lg25  =lg5X(lg2+lg10)-lg2X(lg5+lg10)-2lg5  =lg5Xlg2+lg5-lg2Xlg5-

lg2·lg50-lg5·lg20-lg4

lg2·lg50-lg5·lg20-lg4原式=lg2(1+lg5)-lg5(1+lg2)-2lg2=lg2+lg2lg5-lg5-lg2lg5-2lg2=-(lg2+lg5)=-lg10=-1

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=lg