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证明:若函数f(x)在[a,b]连续,且对[a,b]上任意可积函数φ(x),有则f(x)=0(用反证法),
证明:若函数f(x)在[a,b]连续,且对[a,b]上任意可积函数φ(x),有则f(x)=0(用反证法),
证明:若函数f(x)在[a,b]连续,且对[a,b]上任意可积函数φ(x),有
则f(x)=0(用反证法),
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证明:若函数f(x)在[a,b]连续,且对[a,b]上任意可积函数φ(x),有
则f(x)=0(用反证法),
证明:若函数f(x)在[a,+∞)连续,且其中b是零常数,则函数f(x)在[a,+∞)一致连续.
证明:若函数f(x)与g(x)在[a,b]连续,且f(a)g(b),则使f(c)=g(c).
证明:若函数f(x,y)在R2连续,且则函数f(x,y)在R2一致连续.