微積分級限問題

lim(n→∞) 分子Σ(k=1~n) n^a(n+k)^b 分母Σ(k=1~n) n^b(n+k)^a

a>0,b>0

因為是分數不好打上去所以分子跟分母的地方分開打

分子: n的a次方臣上n+k的b次方

分母: n的b次方臣上n+k的a次方

2 Answers

Rating
  • 1 decade ago
    Favorite Answer

    Hint: Using the definition of Riemann sum.

    2008-02-16 02:49:47 補充:

    We use the definition of Riemann sum to slove it!   

    圖片參考:http://img301.imageshack.us/img301/1953/riemannsum...

    Source(s): myself
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  • 1 decade ago

    太少點啦

    這要20點才會有人幫你解

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