已知双曲线C:2X(平方)—Y(平方)=2与点P(1,2)(1)求过P(1,2)的直线的斜率K的取值范围,使直线与C分别有一个交点、两的交点、没有交点.(2)是否存在过P的弦AB,使A、B中点为P?(3)
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![已知双曲线C:2X(平方)—Y(平方)=2与点P(1,2)(1)求过P(1,2)的直线的斜率K的取值范围,使直线与C分别有一个交点、两的交点、没有交点.(2)是否存在过P的弦AB,使A、B中点为P?(3)](/uploads/image/z/6917645-29-5.jpg?t=%E5%B7%B2%E7%9F%A5%E5%8F%8C%E6%9B%B2%E7%BA%BFC%EF%BC%9A2X%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%E2%80%94Y%EF%BC%88%E5%B9%B3%E6%96%B9%EF%BC%89%3D2%E4%B8%8E%E7%82%B9P%EF%BC%881%2C2%EF%BC%89%EF%BC%881%EF%BC%89%E6%B1%82%E8%BF%87P%EF%BC%881%2C2%EF%BC%89%E7%9A%84%E7%9B%B4%E7%BA%BF%E7%9A%84%E6%96%9C%E7%8E%87K%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%2C%E4%BD%BF%E7%9B%B4%E7%BA%BF%E4%B8%8EC%E5%88%86%E5%88%AB%E6%9C%89%E4%B8%80%E4%B8%AA%E4%BA%A4%E7%82%B9%E3%80%81%E4%B8%A4%E7%9A%84%E4%BA%A4%E7%82%B9%E3%80%81%E6%B2%A1%E6%9C%89%E4%BA%A4%E7%82%B9.%EF%BC%882%EF%BC%89%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E8%BF%87P%E7%9A%84%E5%BC%A6AB%2C%E4%BD%BFA%E3%80%81B%E4%B8%AD%E7%82%B9%E4%B8%BAP%3F%EF%BC%883%EF%BC%89)
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