已知01.比较log a 1/b,log a b,log b 1/b的大小.
已知01.比较log a 1/b,log a b,log b 1/b的大小.
已知01比较log(a)(1/b),log(a)(b),log(b)(1/b)的大小
若a²>b>a>1,试比较log b b/a ,log b a,log a b的大小
已知a大于b大于1,log(a)b+log(b)a=10/3,求log(a)b-log(b)a的值
已知a<b<1,log(a)b+log(b)a=10/3,求log(a)b-log(b)a的值
2^a=log(1/2)a,(1/2)^b=log(1/2)b,(1/2)^c=log(2)c,比较a,b,c的大小
化简log(1/a)b+log(a)b
对数比大小 若a^2>b>a>1,试比较log以a为底a/b的对数,log以b为底b/a的对数,log以b为底a的对数,
a^[log(a)b×log(b)c×log(c)N]
1≤a≤b≤c,证明log(a)(b)+log(b)(c)+log(c)(a)≤log(b)(a)+log(c)(b)+
利用换底公式证明:log(a)b.log(b)c.log(c)a=1
log a b*log b c=log b b*log a c成立吗