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Quadratic Circle
Problem
The quadratic curve, y = x2
bxc, where b,c 
⊕, is drawn and the points of intersection with the axes are labelled, A, B, and C. A circle is drawn through the points A, B, and C, and a fourth point D is created on the y-axis.
Find the co-ordinate of D.
Problem ID: 168 (Apr 2004) Difficulty: 4 Star
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