论文部分内容阅读
圆锥曲线是高考必考的知识点,此类题目往往运算量较大,解法灵活多变,且常与其他知识交汇.解决圆锥曲线问题的常规方法,有时会使解题变得更加复杂,不能更好地解决问题.引入辅元、特殊化、数形结合等方法是减少运算量,简化解题步骤的有效方式.1引入辅元,设而不求,构建解题桥梁解题时,适当引入辅助元素,设而不求,利用点差法等构建解题桥梁,可简化解题过程.
The conical curve is the knowledge point of the entrance examination. Such topics often have a large amount of calculation, and the solution is flexible and often converges with other knowledge. The conventional method of solving the conic curve problem sometimes makes the problem more complex and cannot be solved. To better solve the problem, the introduction of auxiliary elements, specialization, and combination of number and shape is an effective way to reduce the amount of calculations and simplify the problem-solving steps.1 It is appropriate to introduce auxiliary elements, but not to solve problems, and to solve problems when constructing problem solving bridges. The introduction of auxiliary elements, setting without seeking, using point difference method to build problem-solving bridges, can simplify the problem-solving process.