序言一、知识内容解析几何是高中数学的主干内容之一,也是高等数学的基础,因此在高考中历来备受重视.主要内容分为直线、圆的方程,圆锥曲线与方程.直线部分有直线的斜率、倾斜角与方程,两条直线平行垂直的条件,点到直线的距离等;圆及其方程部分有圆的标准方程与一般方程,点与圆的位置关系、直线与圆的位置关系、圆与圆的位置关系;圆锥 Preamble First, the analysis of knowledge content geometry is one of the main content of high school mathematics, but also the basis of advanced mathematics, it has always been highly valued in the college entrance examination.The main content is divided into straight line, circle equation, conic curve and equation. The slope, the angle of inclination and the equation, the two straight lines parallel to the vertical conditions, the point to the straight line distance and so on; circle and its part of a circle standard equations and general equations, the relationship between the point and the circle, the relationship between the line and the circle , The relationship between the circle and the circle; cone