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二次函数是高中数学最基本最简单的函数,同时也是其他数学知识的载体.二次型问题是高考经久不衰的热点问题之一.主要考查的知识点有:①二次函数的图象与性质;②二次函数、二次方程与二次不等式相
Quadratic function is the most basic and simplest function of high school mathematics, but also the carrier of other mathematical knowledge.Quadratic problem is one of the hottest issues of college entrance examination enduring.The main test points are: ① quadratic function of the image And the nature; ② quadratic function, quadratic equation and quadratic inequality phase