如图,圆A的半径为2,A(1,0),点C为圆上一点(第二象限),CD垂直x轴,B为AC的中点,连接BD,当角ABD为45度时,求点C的坐标图形是大致图形,点的坐标已给自己画就行,C在第一象限,A(0,1),在y轴
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![如图,圆A的半径为2,A(1,0),点C为圆上一点(第二象限),CD垂直x轴,B为AC的中点,连接BD,当角ABD为45度时,求点C的坐标图形是大致图形,点的坐标已给自己画就行,C在第一象限,A(0,1),在y轴](/uploads/image/z/5410544-32-4.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%86A%E7%9A%84%E5%8D%8A%E5%BE%84%E4%B8%BA2%2CA%EF%BC%881%2C0%EF%BC%89%2C%E7%82%B9C%E4%B8%BA%E5%9C%86%E4%B8%8A%E4%B8%80%E7%82%B9%EF%BC%88%E7%AC%AC%E4%BA%8C%E8%B1%A1%E9%99%90%EF%BC%89%2CCD%E5%9E%82%E7%9B%B4x%E8%BD%B4%2CB%E4%B8%BAAC%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E8%BF%9E%E6%8E%A5BD%2C%E5%BD%93%E8%A7%92ABD%E4%B8%BA45%E5%BA%A6%E6%97%B6%2C%E6%B1%82%E7%82%B9C%E7%9A%84%E5%9D%90%E6%A0%87%E5%9B%BE%E5%BD%A2%E6%98%AF%E5%A4%A7%E8%87%B4%E5%9B%BE%E5%BD%A2%EF%BC%8C%E7%82%B9%E7%9A%84%E5%9D%90%E6%A0%87%E5%B7%B2%E7%BB%99%E8%87%AA%E5%B7%B1%E7%94%BB%E5%B0%B1%E8%A1%8C%2CC%E5%9C%A8%E7%AC%AC%E4%B8%80%E8%B1%A1%E9%99%90%EF%BC%8CA%EF%BC%880%EF%BC%8C1%EF%BC%89%EF%BC%8C%E5%9C%A8y%E8%BD%B4)
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