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近几年初中数学竞赛中,经常出现最值问题,考虑到构造方程,利用方程思想是解决有关最值问题的良好途径.
In recent years, in the junior high school math competition, the problem of the minimum value often occurs. Taking into account the construction equations, the use of equations is a good way to solve the problem of the most value.