已知圆上的点A(2,3)关于直线x+2y=0的对称点仍在圆上,且圆与直线x-y+1=0相交的弦长为2倍根号2,求圆的方程.
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![已知圆上的点A(2,3)关于直线x+2y=0的对称点仍在圆上,且圆与直线x-y+1=0相交的弦长为2倍根号2,求圆的方程.](/uploads/image/z/2553971-59-1.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86%E4%B8%8A%E7%9A%84%E7%82%B9A%EF%BC%882%2C3%29%E5%85%B3%E4%BA%8E%E7%9B%B4%E7%BA%BFx%2B2y%3D0%E7%9A%84%E5%AF%B9%E7%A7%B0%E7%82%B9%E4%BB%8D%E5%9C%A8%E5%9C%86%E4%B8%8A%2C%E4%B8%94%E5%9C%86%E4%B8%8E%E7%9B%B4%E7%BA%BFx-y%2B1%3D0%E7%9B%B8%E4%BA%A4%E7%9A%84%E5%BC%A6%E9%95%BF%E4%B8%BA2%E5%80%8D%E6%A0%B9%E5%8F%B72%2C%E6%B1%82%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8B.)
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