推 LPH66 :這裡有個 0*∞ 的極限, 要實際做做看收不收斂 11/19 16:46
推 Yogaga :n^3(tan(1/n)-1/n)取極限不等於0,故發散 11/19 16:55
推 itai :你f(x)的收斂區間是要寫-1≦x<1嗎? 11/19 17:05
推 G41271 :1/n(n+1)=1/n - 1/(n+1) 11/19 17:33
→ nobrother :回答itai,書上說寫這樣可以讓f(x)在此閉區間內均勻收 11/19 19:05
→ nobrother :斂 11/19 19:06
→ nobrother :to Yogaga,我每次都忘記先測驗lima_n是否為0 11/19 19:08
→ nobrother :另外,我想問的是,這用泰勒要怎麼看?昨天那些版友的回 11/19 19:09
→ nobrother :應讓我覺得用泰勒看好像很好用 11/19 19:10