數(shù)列極限標(biāo)準(zhǔn)定義：對(duì)數(shù)列{xn},若存在常數(shù)a,對(duì)于任意ε>0,總存在正整數(shù)N,使得當(dāng)n>N時(shí),|xn-a|0,|(a/b)^n-0|n>log(a/b)ε,取N=[log(a/b)ε],言下之意就是隨便給一個(gè)大于0的ε,哪怕這個(gè)ε再小,我都能保證在n>[log(a/b)...