已知函数y=x2+bx+c(c小于0)的图像与X轴分别交于A,B.与Y轴交于点C,设三角形ABC的外接圆的圆心为点P已知函数y=x*x+bx+c(c小于0)的图像与X轴分别交于A,B.与Y轴交于点C,设三角形ABC的外接圆的圆心为点P.
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![已知函数y=x2+bx+c(c小于0)的图像与X轴分别交于A,B.与Y轴交于点C,设三角形ABC的外接圆的圆心为点P已知函数y=x*x+bx+c(c小于0)的图像与X轴分别交于A,B.与Y轴交于点C,设三角形ABC的外接圆的圆心为点P.](/uploads/image/z/12639676-4-6.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0y%3Dx2%2Bbx%2Bc%28c%E5%B0%8F%E4%BA%8E0%29%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8EX%E8%BD%B4%E5%88%86%E5%88%AB%E4%BA%A4%E4%BA%8EA%2CB.%E4%B8%8EY%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%2C%E8%AE%BE%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E5%A4%96%E6%8E%A5%E5%9C%86%E7%9A%84%E5%9C%86%E5%BF%83%E4%B8%BA%E7%82%B9P%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0y%3Dx%2Ax%2Bbx%2Bc%28c%E5%B0%8F%E4%BA%8E0%29%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8EX%E8%BD%B4%E5%88%86%E5%88%AB%E4%BA%A4%E4%BA%8EA%2CB.%E4%B8%8EY%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%2C%E8%AE%BE%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E5%A4%96%E6%8E%A5%E5%9C%86%E7%9A%84%E5%9C%86%E5%BF%83%E4%B8%BA%E7%82%B9P.)
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