The circle C passes through A(1,2) and B(1,4), and its center N lies on the x-axis .
(A) Find the coordinates of the center N.
(B) Find the radius of the circle C.
(C) show that P(2,2) lies outside the circle C.
(D) show that Q(7,2) lies on the circle C.
關於circle的數學題目
2008-12-06 6:15 pm
回答 (2)
2008-12-06 6:35 pm
✔ 最佳答案
a)N:(x,0)開方(x-1)^2+(0-2)^2=開方(x-1)^2+(0-4)^2
no solution,it is a image circle or your question is wrong,please ask again.
個坐標應該比錯左
2008-12-08 3:57 am
let N be (x,0)
the distance from N to A is equal to the distance from N to B
(x-1)^2 + (0-2)^2 = (x-1)^2 + (0-4)^2
4=16 which is a contradiction
=> NO solution
the distance from N to A is equal to the distance from N to B
(x-1)^2 + (0-2)^2 = (x-1)^2 + (0-4)^2
4=16 which is a contradiction
=> NO solution
參考: 自己
收錄日期: 2021-04-25 23:15:58
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