论文部分内容阅读
解析几何包含直线和圆的方程及圆锥曲线方程两部分内容,在高考中,其分值占总分的15%左右.考查的重点有以下几点:考查基础,包括直线的倾斜角、斜率、距离、平行与垂直,点对称、直线对称,线性规划问题等;直线和圆锥曲线的位置关系以及轨迹问题,仍然以考查方程思想及用韦达定理处理弦长和弦中点为重点;坐标法使平面向量与平面解析几何自然地联系并有机结合起来,相关交汇试题应运而生;涉及圆锥曲线参数的取值范围的问题也是命题的亮点.
Analytic geometry contains two parts: the equation of straight line and circle, and the equation of conic curve. In the college entrance examination, the score is about 15% of the total score. The focus of the examination is the following: Examination basis, including the inclination angle, slope of the straight line, Distance, parallel and vertical, point symmetry, linear symmetry, linear programming problems, etc.; positional relationship and trajectory of straight lines and conic curves are still focused on the examination of equations and the use of Vedic theorem to deal with chord lengths and mid-chords; coordinate methods The plane vector and the plane analytical geometry are naturally linked and organically combined, and related intersection test questions arise at the historic moment. The question of the range of values involving the parameters of the conic curve is also the highlight of the proposition.