Maths - circle

2009-04-10 5:20 am
A circle passes through points A(4,2) and B(-2,6).If its centre lies on the y-axis,
(a)find the coordinates of the centre.
(b)find the radius.
點計?

回答 (1)

2009-04-10 5:36 am
✔ 最佳答案
(a)
Let the coordinates of the centre is (0,y).

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