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形如y=af(x)(1/2)+bg(x)(1/2)+c的函数是一类含双平方根式的无理函数,这类函数的值域(最值)问题在高三理科数学复习中是一个难点内容,也是近几年高考命题的热点.这类问题的求解涉及函数、几何、三角、向量以及不等式等数学知识,具有较强的综合性,若学生没有掌握比较系统的数学知识,解决这类问题是有一定困难的.为此,笔者对这类问题的求解方法进行了总结与归纳,现将几
The function of the form y = af (x) (1/2) + bg (x) (1/2) + c is a type of irrational function with a double square root. The value range High school mathematics review is a difficult content, but also hot topic in recent years college entrance examination proposition. Solving such problems involving functions, geometry, trigonometry, vectors and inequalities and other mathematical knowledge, with strong comprehensive, if students do not grasp the comparison System of mathematical knowledge, to solve such problems is a certain degree of difficulty.To this end, the author of this type of problem solving methods were summarized and summarized, now a few