圆锥曲线中的定值问题一直是高考的热点和难点。本文通过一道例题对此类问题做深度解析，探索其规律，希望以此增强学生思维的深刻性，培养学生的创新精神% Definite value problem of conic section is always a hot and difficult point in college entrance examination. Through a deep analysis of a typical problem of such problems, this paper explores its rule, hoping to enhance the depth of students' thinking and cultivate their innovative spirit.
展开▼
