Evaluate(a) ln[Ce^(-at)](b) log₄(1/8)(c) log₃27&

a^[log(a)b×log(b)c×log(c)N] 利用换底公式证明：log(a)b.log(b)c.log(c)a=1 1≤a≤b≤c,证明log(a)(b)+log(b)(c)+log(c)(a)≤log(b)(a)+log(c)(b)+ log a b*log b c=log b b*log a c成立吗 [log (底数为a) x]=[1\2log (底数为a) b ] - [ log (底数为a)c]求X log(a)(b)+log(a)(c)可以等于什么 log(a)(b)=log(c)(b) /log(c)(a) 怎么证 化简log(1/a)b+log(a)b 对数函数题 log a - log b = 3 log (c/2) 求 a = ______________ 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 log证明题证明：1.a^ln(n)=n^ln(a)2.log(n)=c*ln(n) (log以10为底） 已知01.比较log a 1/b,log a b,log b 1/b的大小.