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众所周知,比较两个底数、真数都不相同的对数的大小,是一个讲究技巧,难度较大的问题。本文试用“对数换底不等式”一般地讨论这一问题,并得出一个使用方便的判别法。先给出关于“对数换底不等式”的定理。
As we all know, comparing the size of the logarithm with different base numbers and true numbers is a problem that is skillful and difficult. This paper tries to discuss this problem in general by using the “logarithmic transformation inequality” and arrives at an easy-to-use discriminant method. Let’s give a theorem about “Logarithmic transformation inequality”.