問題詳情
1. 若實數a﹑b﹑c﹑d使得聯立方程組 
有解﹐且聯立方程組 
無解﹐則下列哪些選項一定正確﹖
(A)a ≠ -
(B)c = -
(C)b =
(D)d ≠ -
(E)聯立方程組 
無解
參考答案
答案：C,D
難度：計算中-1
書單：沒有書單，新增
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