[分析] 請教一題高微

[OSGrup (open將真的很可愛)]

Let f be a continuous function in the interval -1≦x≦1.

Prove that
        1        h
 lim  ∫   -------------- f(x) dx = π*f(0)
h->0+  -1  (h^2) + (x^2)


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