已知圆A:(x-1)2+y2=4与x轴负半轴交于B点,过B的弦BE与y轴正半轴交于D点,且2BD=DE,曲线C是以A...已知圆A:(x-1)2+y2=4与x轴负半轴交于B点,过B的弦BE与y轴正半轴交于D点,且2BD=DE,曲线C是以A,B为焦点
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![已知圆A:(x-1)2+y2=4与x轴负半轴交于B点,过B的弦BE与y轴正半轴交于D点,且2BD=DE,曲线C是以A...已知圆A:(x-1)2+y2=4与x轴负半轴交于B点,过B的弦BE与y轴正半轴交于D点,且2BD=DE,曲线C是以A,B为焦点](/uploads/image/z/10885136-32-6.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86A%EF%BC%9A%EF%BC%88x-1%EF%BC%892%2By2%3D4%E4%B8%8Ex%E8%BD%B4%E8%B4%9F%E5%8D%8A%E8%BD%B4%E4%BA%A4%E4%BA%8EB%E7%82%B9%2C%E8%BF%87B%E7%9A%84%E5%BC%A6BE%E4%B8%8Ey%E8%BD%B4%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%BA%A4%E4%BA%8ED%E7%82%B9%2C%E4%B8%942BD%3DDE%2C%E6%9B%B2%E7%BA%BFC%E6%98%AF%E4%BB%A5A...%E5%B7%B2%E7%9F%A5%E5%9C%86A%EF%BC%9A%EF%BC%88x-1%EF%BC%892%2By2%3D4%E4%B8%8Ex%E8%BD%B4%E8%B4%9F%E5%8D%8A%E8%BD%B4%E4%BA%A4%E4%BA%8EB%E7%82%B9%2C%E8%BF%87B%E7%9A%84%E5%BC%A6BE%E4%B8%8Ey%E8%BD%B4%E6%AD%A3%E5%8D%8A%E8%BD%B4%E4%BA%A4%E4%BA%8ED%E7%82%B9%2C%E4%B8%942BD%3DDE%2C%E6%9B%B2%E7%BA%BFC%E6%98%AF%E4%BB%A5A%2CB%E4%B8%BA%E7%84%A6%E7%82%B9)
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