设log2^5=m,log5^7=n,则log2^7=?
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设log2^5=m,log5^7=n,则log2^7=?设log2^5=m,log5^7=n,则log2^7=?设log2^5=m,log5^7=n,则log2^7=?log2^7=[log2^5]×
设log2^5=m,log5^7=n,则log2^7=?
设log2^5=m,log5^7=n,则log2^7=?
设log2^5=m,log5^7=n,则log2^7=?
log2^7=[log2^5]×[log5^7]=mn
他用了推论,1/log5^2=log2^5 ,所以log2^7
设log2^5=m,log5^7=n,则log2^7=?
设m=log5(8);n=log2(5),则m与n的大小关系是.求详解,
已知log2(5)=m ,log5(3)=n,求用m,n表示lg180
设log5 7=a ,log2 5=b ,则log2 7= 能写写过程么,
一道高一数学题7设log2=a,log3=b,则log5^12=?
设log5 7(7是上面的)=a ,log2 5(5是上面的)=b,则log2 7(7是上面的)
设log5 7=a,(5为底数),log2 5 =b ,(2为底数),则log2 7 等于多少,(2为底数)
若m=1/log5(19)+2/log3(19)+3/log2(19),n=1/log2(π)+1/log5(π),则m与n的大小关系为什么m
log2(5) ×log5(8)=3步骤
log2[log3[log5 125]]=?log2[log3[log5 125]]=?
设log2^3=a,log5^3=b,则lg3等于
设log2(5)=x,log5(3)=y,试用x,y表示log24(20)
log5[log2(log9/log3)]=?
(log5)^2+(log2)(log50)=?
log2(log5 x)=-1
log2^5*log3^2倍根号2*log5^9=
高一数学设a=(lg2)²+(lg5)²+lg4lg5+2log5 10+log5 0.25 b=(log2 125+log8 5)×log5 2试比较a与b的大小 详细过程 谢谢.
log2(3)*log3(4)*log4(5)*log5(6)*log6(7)*log7(8)=?