圆锥曲线试题在考试中的计算量和计算能力要求都比较高,对很多学生很困难。用新课程中圆锥曲线统一的极坐标方程解答,那么圆锥问题的思路和解答就变得简单很多,本文就用极坐标解决圆锥焦点弦问题做点抛砖引玉的工作。 Conic test questions in the exam calculation and computing power requirements are relatively high, for many students is very difficult. With the new course of conic curve unified polar equation to answer, then the conic problem ideas and solutions becomes much simpler, this paper will use polar coordinates to solve the problem of conical focus chords to do some work.