最終更新日：2025/11/21
When you expand (t + x_1)(t + x_2)⋯(t + x_n), each elementary symmetric polynomial in x_1,...,x_n appears as the coefficient of some power of t.
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When you expand (t + x_1)(t + x_2)⋯(t + x_n), each elementary symmetric polynomial in x_1,...,x_n appears as the coefficient of some power of t.
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