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从事物的特殊性中去探求它的一般的普遍规律是一种重要的数学方法．由于事物的特殊性中包含着事物的普遍性，所以在研究某些有关一般值的数学问题而直接解答有困难时，我们可以不考虑一般值，而直接利用特殊值去研究解决，从而促使原问题获解，这就是所谓的“特殊值法”．根据?
It is an important mathematical method to explore its general laws from the particularity of things. Since the particularity of things includes the universality of things, when we study some mathematical problems related to general values and have direct answers to the difficulties, we can use the special values directly to study and solve them without considering the general values, thus prompting the original The problem is solved. This is the so-called “special value method.” according to?