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[函数] 2022新年贺岁又一题,求所有根的和(初中)

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realnumber posted 2022-2-1 20:25 |Read mode
$\abs{\abs{\abs{x-x_1}-x_2}...-x_n}=k$,取适当的$k,x_1,x_2,...,x_n$使得关于x的方程根的个数最多,则此时这些根之和为几何?

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其妙 posted 2022-2-1 21:56
这里有类似的n重绝对值方程的根,值得说的是,里面有大神kuing的解法:

mp.weixin.qq.com/s?__biz=MzIxMDYxMDMxOQ==& … 77883648201949185#rd

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