如图,AB是圆O的直径,P为AB延长线上任意一点,C为半圆ABC的中点,PD切圆O于点D,连接CD交AB于点E求证(1)PD=PE(2)PE^2=PA*PB
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![如图,AB是圆O的直径,P为AB延长线上任意一点,C为半圆ABC的中点,PD切圆O于点D,连接CD交AB于点E求证(1)PD=PE(2)PE^2=PA*PB](/uploads/image/z/3184439-23-9.jpg?t=%E5%A6%82%E5%9B%BE%2CAB%E6%98%AF%E5%9C%86O%E7%9A%84%E7%9B%B4%E5%BE%84%2CP%E4%B8%BAAB%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%B8%8A%E4%BB%BB%E6%84%8F%E4%B8%80%E7%82%B9%2CC%E4%B8%BA%E5%8D%8A%E5%9C%86ABC%E7%9A%84%E4%B8%AD%E7%82%B9%2CPD%E5%88%87%E5%9C%86O%E4%BA%8E%E7%82%B9D%2C%E8%BF%9E%E6%8E%A5CD%E4%BA%A4AB%E4%BA%8E%E7%82%B9E%E6%B1%82%E8%AF%81%EF%BC%881%EF%BC%89PD%3DPE%EF%BC%882%EF%BC%89PE%5E2%3DPA%2APB)
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