問題詳情
C. 若正焦弦長 4，中心(1,2)，二焦點間距離2 √15 ，且焦點在 x=1 上的雙曲線方程式為
，則數對(A,B)=__ ( (18)(19),(20) )__ 。。
，則數對(A,B)=__ ( (18)(19),(20) )__ 。。
參考答案
答案：B
難度：簡單0.732813
統計：A(121),B(469),C(12),D(0),E(0)
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