作者spss520 (剩下一个月啦)
看板trans_math
标题[考古] 91政大应数1
时间Tue Jan 30 00:05:55 2007
∞
(a)Show that for every real x the Σ sin(nx)/n^2 converges
n=1
∞
(b)Denoting f(x)=Σ sin(nx)/n^2
n=1
then f(x) is continuous in [o,pi]
pi ∞ 1
(c)Prove that ∫ f(x)dx=Σ---------------
0 n=1 (2n-1)^3
呵呵~可以讲解一下(b)(c)吗?
谢谢大家
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