如图,已知sin角ABC=1\3,圆O半径为2,圆O与射线BA相交于E、F两点,EF=2根号3,求(1)BO如图,已知sin角ABC=1\3,圆O半径为2,圆O与射线BA相交于E、F两点,EF=2根号3,求(1)BO的长;(2)点P在射线BC上,以点P为圆
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![如图,已知sin角ABC=1\3,圆O半径为2,圆O与射线BA相交于E、F两点,EF=2根号3,求(1)BO如图,已知sin角ABC=1\3,圆O半径为2,圆O与射线BA相交于E、F两点,EF=2根号3,求(1)BO的长;(2)点P在射线BC上,以点P为圆](/uploads/image/z/12388932-36-2.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5sin%E8%A7%92ABC%3D1%5C3%2C%E5%9C%86O%E5%8D%8A%E5%BE%84%E4%B8%BA2%2C%E5%9C%86O%E4%B8%8E%E5%B0%84%E7%BA%BFBA%E7%9B%B8%E4%BA%A4%E4%BA%8EE%E3%80%81F%E4%B8%A4%E7%82%B9%2CEF%3D2%E6%A0%B9%E5%8F%B73%2C%E6%B1%82%281%29BO%E5%A6%82%E5%9B%BE%2C%E5%B7%B2%E7%9F%A5sin%E8%A7%92ABC%3D1%5C3%2C%E5%9C%86O%E5%8D%8A%E5%BE%84%E4%B8%BA2%2C%E5%9C%86O%E4%B8%8E%E5%B0%84%E7%BA%BFBA%E7%9B%B8%E4%BA%A4%E4%BA%8EE%E3%80%81F%E4%B8%A4%E7%82%B9%2CEF%3D2%E6%A0%B9%E5%8F%B73%2C%E6%B1%82%EF%BC%881%EF%BC%89BO%E7%9A%84%E9%95%BF%EF%BC%9B%EF%BC%882%EF%BC%89%E7%82%B9P%E5%9C%A8%E5%B0%84%E7%BA%BFBC%E4%B8%8A%2C%E4%BB%A5%E7%82%B9P%E4%B8%BA%E5%9C%86)
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