Rt三角形外接圆为圆o,角ABC=90°,AP为圆o的切线,BP交AC于点E,交圆o于点D,若BE=DP=1,DE=2,求BC长
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![Rt三角形外接圆为圆o,角ABC=90°,AP为圆o的切线,BP交AC于点E,交圆o于点D,若BE=DP=1,DE=2,求BC长](/uploads/image/z/8708118-6-8.jpg?t=Rt%E4%B8%89%E8%A7%92%E5%BD%A2%E5%A4%96%E6%8E%A5%E5%9C%86%E4%B8%BA%E5%9C%86o%2C%E8%A7%92ABC%3D90%C2%B0%2CAP%E4%B8%BA%E5%9C%86o%E7%9A%84%E5%88%87%E7%BA%BF%2CBP%E4%BA%A4AC%E4%BA%8E%E7%82%B9E%2C%E4%BA%A4%E5%9C%86o%E4%BA%8E%E7%82%B9D%2C%E8%8B%A5BE%3DDP%3D1%2CDE%3D2%2C%E6%B1%82BC%E9%95%BF)
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