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设f(x)在[a,b]上连续,f(a)=f(b)=0,且,证明:f(x)在(a,b)内必有一个零值点.
设f(x)在[a,b]上连续,f(a)=f(b)=0,且,证明:f(x)在(a,b)内必有一个零值点.
设f(x)在[a,b]上连续,f(a)=f(b)=0,且,
证明:f(x)在(a,b)内必有一个零值点.
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设f(x)在[a,b]上连续,f(a)=f(b)=0,且,
证明:f(x)在(a,b)内必有一个零值点.