log2(5) ×log5(8)=3步骤
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log2(5)×log5(8)=3步骤log2(5)×log5(8)=3步骤log2(5)×log5(8)=3步骤log2(5)×log5(8)=(lg5)/(lg2)×(lg8)/(lg5)=(lg
log2(5) ×log5(8)=3步骤
log2(5) ×log5(8)=3步骤
log2(5) ×log5(8)=3步骤
log2(5) ×log5(8)
=(lg5)/(lg2)×(lg8)/(lg5)
=(lg8)/(lg2)
=(lg2^3)/(lg2)
=3lg2/lg2
=3
log2(5) ×log5(8)
=(lg5/lg2)*(lg5/lg8) （化为同底的对数）
=lg8/lg2 (约分)
=3
log2(5) ×log5(8)=3步骤
log2(5)*log5(8)化简
log2(3)*log3(5)*log5(8)（具体步骤）
log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=?
比较大小log2 5和log5 8
计算：log2(8)×log4(5)×log5(16)
（1）2log5*10+log5*0.25(2)log2(log2*16)(3)lg12.5-lg5/8+lg0.5第三题：y=√（x²+3x+2）+log2*3x的定义域是?
(log5(10))^3-(log5(2))^3-3log5(10)*log2(5)
lg(1/4)-lg2(5) 2log5(10)+log5(0.25) 2log2(25)-3log2(64) log2(log2(16) )
计算log2 6-log2 3,lg5+lg2,log5 3+log5 1/3,log3 5-log3 15
(log2(3))^x-(log5(3))^x>=(log2(3))^(-y)-(log5(3))^(-y)
log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2[log2(32)-log2(3÷4）+log2log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2【log2(32)-log2(3÷4）+log2（6）】=?lgx+lg（x+15）=2 ..X
log2[log3[log5 125]]=?log2[log3[log5 125]]=?
log5[log2(log9/log3)]=?
(log5)^2+(log2)(log50)=?
log2(log5 x)=-1
log2(3)+log3(4)+log4(5)+log5(6)+log6(7)+log7(8)
log2(2)+log5(1)-log1/3(1/27)+[3^log3(5)]^2+3^-log3(2)=?