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历届高考中,圆锥最值问题长期以来就是一个必考的知识点,其难度较大,综合性较高,对学生的解题思想和方法具有很高的要求。一、构造函数法针对圆锥曲线中存在的部分最值问题,数学老师可以尝试引导学生把所求最值问题进行转化,转化为函数的最值问题,这样一来就可以通过里面一些函数的最值问题从而知晓所求的结果。构造函数法在圆锥最值问题的解答中具有一些意想不到的功效,需要在实际的解答过程中进行发现和掌握。接下来就用2013年的一道模拟试题对构造函数法进行分
In the previous college entrance examination, the conical maximum value problem has long been a must-read knowledge point, which is more difficult and more comprehensive. It has high requirements for students’ problem-solving ideas and methods. First, the constructor method Conic curve exists for some of the most value problems, math teachers can try to guide students to the most value of the problem to be transformed into the function of the most value problem, so that you can pass some of the most Value problem to know the result of the request. The constructor method has some unexpected effects in the solution of the cone’s most significant problem and needs to be discovered and mastered in the actual solution process. Next, we’ll use the constructor method in a mock question in 2013