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数学的定义是建立数学大厦的基石,巧妙运用,可起到事半功倍之效.下面举例说明一元二次方程的根的应用,供参考.
The definition of mathematics is to establish the cornerstone of math building, clever use, can play a multiplier effect. The following example illustrates the application of the root of a quadratic equation, for reference.