問題詳情
( )4.設f (x)為一個多項式函數，且滿足 
xa f (t)dt＝x2－x，若a≠0，則a的值為：
(A)
(B) －
(C)
(D) －
(E) 3
xa f (t)dt＝x2－x，若a≠0，則a的值為：(A)
(B) －
(C)
(D) －
(E) 3
參考答案
答案：A[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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