問題詳情
1. 設 a、b∈1 ,函數 f(x)=x2+ax+b對任意實數 t 都有 f (3+t )=f (3-t ) ,則下列何者為真?
(A) f ( -1) > f (2)
(B) f ( π ) > f(√ 5)
(C) f (5) > f (1)
(D) f (8)=f ( -2)
(E) f(x) 有最大值為 9+3a+ b
(A) f ( -1) > f (2)
(B) f ( π ) > f(√ 5)
(C) f (5) > f (1)
(D) f (8)=f ( -2)
(E) f(x) 有最大值為 9+3a+ b
參考答案
答案:A
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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