Let f(x) be second differentiable on [0,2], and

匿名用户 最后更新于 2021-10-25 13:21 数学类Mathematics

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Let f(x) be second differentiable on [0,2], and(x)< 0,()=1,(2)=-1,()=f(2)=1. Prove2≤ff(x)dx≤3


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