27.f(x)=(−6x5+5x3−4x2+4)7,則其奇次項係數和為多少?
(A)−2
(B)−1
(C)0
(D)1
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統計: A(40), B(249), C(110), D(30), E(0) #3113796
統計: A(40), B(249), C(110), D(30), E(0) #3113796