问题
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设连续函数列{fn(x))在[α,b]上一致收敛于f(x),而g(x)在(-∞,+∞)上连续。证明:{g(fn(x)) }在[α,b]上
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设f(x)是-∞<x<∞上的连续函数。g(x)是a≤x≤b上的可测函数 则f(g(x))是可测函数
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设函数f(x) g(x)在[a b]上连续 且在[a b]区间积分∫f(x)dx=∫g(x)dx
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设函数f(x)在闭区间[a b]上连续 在开区间(a b)内可导 且f(x)>0.若极限存在 证明: (1)在(a b)内f
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设函数f(x)和g(x)和[a b]上存在二阶导数 并且g"(x)≠0 f(a)=f(b)=g(a)=g(b)=0 试证 (1)在开区间(a b)
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设函数f(x) g(x)在[a b]上连续 在(a b)内具有二阶导数且存在相等的最大值 f(a)=g(a) f(b)=g(b)
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