计算4lg2+3lg5-lg1/5
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/08/30 06:10:36
计算4lg2+3lg5-lg1/5
(1)4lg2+3lg5-lg1/5
(2)lg12.5-lg5/8+lg1/2
(3)lg²4+lg²25+8lg2*lg5
(1)4lg2+3lg5-lg1/5
(2)lg12.5-lg5/8+lg1/2
(3)lg²4+lg²25+8lg2*lg5
4lg2 +3lg5-lg(1/5)
=lg16+lg125-lg(1/5)
=lg[16×125÷(1/5)]
=lg(16×125×5)
=lg10000
=4
lg12.5-lg(5/8)+lg(1/2)
=lg[12.5÷(5/8)×(1/2)]
=lg[(25/2)×(1/2)×(8/5)]
=lg[(25/4)×(8/5)]
=lg10
=1
(lg4)^2 +(lg25)^2 +8lg2lg5
=(2lg2)^2 +(2lg5)^2 +8lg2lg5
=(2lg2+2lg5)^2
=(2lg10)^2
=4
=lg16+lg125-lg(1/5)
=lg[16×125÷(1/5)]
=lg(16×125×5)
=lg10000
=4
lg12.5-lg(5/8)+lg(1/2)
=lg[12.5÷(5/8)×(1/2)]
=lg[(25/2)×(1/2)×(8/5)]
=lg[(25/4)×(8/5)]
=lg10
=1
(lg4)^2 +(lg25)^2 +8lg2lg5
=(2lg2)^2 +(2lg5)^2 +8lg2lg5
=(2lg2+2lg5)^2
=(2lg10)^2
=4
2lg2+3lg5-lg1除以5
lg30*lg5+lg0.5*lg1\3 为什么等于[1+lg3]*lg5+lg2*lg3 那么然后又该如何计算呢
[(lg2+lg5-lg1)/(2lg0.5+lg8)]*(lg32-lg2) 分步计算步骤,
计算:(lg2)2+3lg5+lg5(1+lg2)+lg8+log2(5)log5(4)
计算:lg5(lg8+lg1000)+(lg2根号3)的平方+lg1/6+lg0.06 ,
计算:lg2+lg5+lg1-998的0次方+27的1/3次方
计算:lg5(lg8+lg1000)+(lg2^√3)^2+lg1/6+lg0.06.
计算:4lg1+lg2.5+lg4-(1/2)lg10^2
(1)计算:lg5(lg8+lg1000)+(lg2^根号3)²+lg1/6+lg0.06 (2)已知x,y,
高中对数函数的计算lg5(lg8+lg1000)+(lg2^√3)^2+lg1/6+lg0.06的值是多少?
2lg5+(lg2)^3*(2lg5+lg2)计算~
计算:(lg5)^2 +lg2 *lg5