椭圆短轴量端点为B1,B2,过左焦点F1作X轴的垂线交椭圆于P,若|F1B2|是|OF1|和|B1B2|的等比中项(O为圆心),则|PF1|/|OB2|的值为?
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![椭圆短轴量端点为B1,B2,过左焦点F1作X轴的垂线交椭圆于P,若|F1B2|是|OF1|和|B1B2|的等比中项(O为圆心),则|PF1|/|OB2|的值为?](/uploads/image/z/6858895-31-5.jpg?t=%E6%A4%AD%E5%9C%86%E7%9F%AD%E8%BD%B4%E9%87%8F%E7%AB%AF%E7%82%B9%E4%B8%BAB1%2CB2%2C%E8%BF%87%E5%B7%A6%E7%84%A6%E7%82%B9F1%E4%BD%9CX%E8%BD%B4%E7%9A%84%E5%9E%82%E7%BA%BF%E4%BA%A4%E6%A4%AD%E5%9C%86%E4%BA%8EP%2C%E8%8B%A5%7CF1B2%7C%E6%98%AF%7COF1%7C%E5%92%8C%7CB1B2%7C%E7%9A%84%E7%AD%89%E6%AF%94%E4%B8%AD%E9%A1%B9%EF%BC%88O%E4%B8%BA%E5%9C%86%E5%BF%83%EF%BC%89%2C%E5%88%99%7CPF1%7C%2F%7COB2%7C%E7%9A%84%E5%80%BC%E4%B8%BA%3F)
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