[分享] 高一多項式 一題
昨天遇到的一個問題,覺得頗有難度,跟大家分享
實係數方程式 x^3+ax^2+bx+1=0
有1實根與2虛根alpha,alpha^2
試求a,b
用棣美弗的方式解出來,不過超出高一範圍,
高一的方法,多花了一些時間才想出來,
蠻有意思的。
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