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圆锥曲线的综合题是高考的重点.它侧重于形象思维,推理运算和数形结合,综合了代数,三角,几何,向量等知识,所涉及的知识点较多,对解题能力考查的层次要求较高.学生做题时往往入题容易,解题思路清晰,但是字母多,式子繁,不容易找到一个合适的关系式把这些字母式子统一起来,并且运算量大,通常学生只能得一些步骤分,要得出正确的结论很难.而直线和圆锥曲线的问题更是解析几何中的典型问题,也
The conic curve synthesis question is the key point of the college entrance examination .It focuses on the image thinking, reasoning operation and the combination of number form, synthesizes the knowledge of algebra, triangle, geometry, vector and so on, Higher requirements.Students often make questions when the title is easy to solve problems clear thinking, but many letters, complex formula, it is not easy to find a suitable relationship to these letters together, and the large amount of computation, usually students only To get some points, it is difficult to draw the correct conclusion, while the problems of straight lines and conic curves are more typical problems in analytic geometry.