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[函数] 极值点又偏移了 有点失控了

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facebooker posted 2019-9-9 21:24 |Read mode
已知函数$f(x)=x-\dfrac{1}{2}\sin x-\dfrac{m}{2}\ln x+1$,若存在$x_1,x_2\in(0,+\infty),x_1\ne x_2,f(x_1)=f(x_2),prove:x_1x_2<m^2 $

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original poster facebooker posted 2019-9-10 23:39
Last edited by facebooker 2019-9-11 11:43已解决 就是一个简单的ALG不等式 版主帮忙删了这贴吧

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