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解几是高考重点考查的内容,其中圆锥曲线离心率问题中涉及椭圆、双曲线离心率的试题又是常考的重点和亮点．椭圆、双曲线离心率问题的考查分为二类: 一类是求其离心率的值,一类是求其离心率的取值范围．考查的题型既有选择题、填空题,又有解答题．一求离心率的值求解椭圆、双曲线离心率的值的方法:一是直接
Solution is the focus of the examination of the college entrance examination, in which the question of the eccentricity of the eccentricity of the conic section eccentricity, hyperbola eccentricity test questions are often the focus and highlights of the exam. The examination of elliptic and hyperbolic eccentricity problems is divided into two categories: one is to find the value of the eccentricity, and the other is to find the range of the eccentricity. The questions examined are both multiple-choice questions, blank-fill questions, and answer questions. A method of finding the value of the eccentricity to solve the value of the elliptic, hyperbolic eccentricity: First, direct