推 alfredo92222:use stone-wierestrass theorem 01/03 00:43
→ clouddeep:18126 18130 請參考 01/03 23:42
Let f:[a,b]→R be a continuous function.Assume that
∫x^n*f(x)dx=0（積分範圍是a到b） for all nonnegative integer n.
Show that f(x)=0 for all x屬於[a,b]
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