对于圆锥曲线问题,学生经常会遇到思路正确,但因运算过程繁杂,不得已半途而废的现象,因此,解答圆锥曲线问题应尽量减少计算量则成为能否迅速、准确地解题的关键.今举例说明在圆锥曲线问题中减少运算量的九种策略.一、巧用曲线系方程对于符合某些条件的曲线,可设相关的曲线系 For the conic problem, students often encounter the right ideas, but because of the complex process, the phenomenon of halfway through the problem, therefore, to solve the problem of conic curves should minimize the amount of computation has become the key to the problem can be solved quickly and accurately. Explain the nine strategies to reduce the computational complexity in the conic problem. First, the use of the equation of the curve For some conditions in line with the curve, can be set to the relevant curve