已知在直角坐标系中,A(1,0),B(3.0),C(0,3),圆M过点A,B,C,求M坐标.第一问很简单,主要是第二问:若D是关于C点x轴的对称点,一条抛物线经过A,B,D三点,若将O,B,D三点构成的三角形沿着BD翻折得到的
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![已知在直角坐标系中,A(1,0),B(3.0),C(0,3),圆M过点A,B,C,求M坐标.第一问很简单,主要是第二问:若D是关于C点x轴的对称点,一条抛物线经过A,B,D三点,若将O,B,D三点构成的三角形沿着BD翻折得到的](/uploads/image/z/10914765-69-5.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%A8%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%AD%2CA%EF%BC%881%2C0%EF%BC%89%2CB%EF%BC%883.0%EF%BC%89%2CC%280%2C3%29%2C%E5%9C%86M%E8%BF%87%E7%82%B9A%2CB%2CC%2C%E6%B1%82M%E5%9D%90%E6%A0%87.%E7%AC%AC%E4%B8%80%E9%97%AE%E5%BE%88%E7%AE%80%E5%8D%95%2C%E4%B8%BB%E8%A6%81%E6%98%AF%E7%AC%AC%E4%BA%8C%E9%97%AE%EF%BC%9A%E8%8B%A5D%E6%98%AF%E5%85%B3%E4%BA%8EC%E7%82%B9x%E8%BD%B4%E7%9A%84%E5%AF%B9%E7%A7%B0%E7%82%B9%2C%E4%B8%80%E6%9D%A1%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%BB%8F%E8%BF%87A%2CB%2CD%E4%B8%89%E7%82%B9%2C%E8%8B%A5%E5%B0%86O%2CB%2CD%E4%B8%89%E7%82%B9%E6%9E%84%E6%88%90%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%E6%B2%BF%E7%9D%80BD%E7%BF%BB%E6%8A%98%E5%BE%97%E5%88%B0%E7%9A%84)
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