問題詳情
2.已知函數f（x）＝2x2－7，下列敘述何者正確？
(A) f（1）＝5
(B) f（－2）＝－15
(C) f（1）＋f（－1）＝－10
(D) f（1）＋f（－2）＝0
(A) f（1）＝5
(B) f（－2）＝－15
(C) f（1）＋f（－1）＝－10
(D) f（1）＋f（－2）＝0
參考答案
無參考答案
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