22.已知cos60° = 4cos320° - 3cos20°，則多項式4x3 - 3x除以x - cos20°的餘式為何？　(A) 1　(B) 　(C) 　(D) 0

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) 1　
(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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