問題詳情
22.已知cos60° = 4cos320° - 3cos20°，則多項式4x3 - 3x除以x - cos20°的餘式為何？
(A)
(B)
(C)
(D) 0
(A)
(B)
(C)
(D) 0
參考答案
答案：D[無官方正解]
難度：困難0.25
統計：A(1),B(1),C(1),D(1),E(0)
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