問題詳情
13. 試求圓C:x2+y2=4上有多少點到直線L:3x+4y=5的距離為 1？
(A) 1
(B) 2
(C) 3
(D) 4
(A) 1
(B) 2
(C) 3
(D) 4
參考答案
無參考答案
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