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[不等式] 两个小填空 晚餐来了

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facebooker posted 2020-5-17 22:01 |Read mode
Last edited by facebooker 2022-4-13 00:361)设$x_1,x_2,\cdots,x_n\in R$,求$\dfrac{x_1x_2+x_2x_3+\cdots+x_{n-1}x_n}{x_1^2+x_2^2+\cdots+x_n^2}$ 的最大值__
2)已知关于$x$的方程$e^{x+m}-\left(e-2\right)\ln x=\ln^{2} x+m+2$ 恰有两个实数解,则实数$m$的取值范围___

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kuing posted 2020-5-18 12:48
1) 见附件: $type n元.zip (63.33 KB, Downloads: 3930) (2009年存档下来的)

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original poster facebooker posted 2020-5-18 14:31
回复 2# kuing


   多谢 没想到还可以这么做。

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