圆锥曲线是解析几何的核心内容,是高考考查的重点内容之一,在高考试题中常以与圆锥曲线有关的轨迹(曲线)方程问题、最值(范围)问题、定值(定点)问题与探索性问题等形式出现,多与函数、方程、不等式、三角函数、平面向量、导数等知识交汇在一起,渗透数形结合、分类讨论、等价 Conic curve analysis is the core of analytic geometry is one of the key elements of the college entrance examination exam, often associated with the conic curve trajectory (curve) equation problems, the most value (range) problems, fixed value (fixed point) and exploration Sexual problems and other forms, and more with the function, equations, inequalities, trigonometric functions, planar vectors, derivatives and other knowledge together, the combination of infiltration number, classification discussion, equivalent