数学题目形式多样,变化无穷,实无万能的钥匙可以打开层出不穷的难题之门。然而,许多问题,抓住常数这一已知条件,是变繁为简、化难为易的关键;而且许多令人赞尝的解法,深追细究、其优美之处恰恰在于常数所用的巧妙、高明.数学解题中,将已知常数提高到策略地位,有助于优化 There are many kinds of mathematics titles, and there are endless changes. There is no universal key that can open up endless puzzles. However, for many problems, grasping the known condition of constants is the key to becoming simple and complicated, and it is difficult to make things easier; and many of the most impressive solutions are closely followed, and their beauty lies precisely in the clever use of constants. Gao Ming. In the mathematical problem solving, it is helpful to optimize the known constants to a strategic position.