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数学题中有已知有未知,解题的任务就是从已知探究未知。为此我们可以总结出一些行之有效的方法,比如繁化简、难化易、多化少、不熟悉的化为熟悉的等等。但是繁与简、难与易、多与少等不是绝对的而是相对的,如果能换一个角度或者从相反的角度看待它们,也许可以把这些矛盾置于合理的情境中实现更顺利的转化,这就是辩证的观点。用辩证的观点看问题,是提高思维灵活性的有效途径。一、多与少常规来讲,一元函数比二元函数简单,
There are known math problems are unknown, problem-solving task is unknown from the known inquiry. To this end we can sum up some effective methods, such as simplifying, difficult to change, less diversified, unfamiliar into the familiar and so on. However, it is not absolute but relative that traditional and simplified, difficult and easy, more and less are absolute. If we look at them from the opposite perspective or from the opposite perspective, we may put these contradictions in a reasonable situation to achieve a more smooth transformation This is a dialectical point of view. Viewing the issue from a dialectical point of view is an effective way to increase the flexibility of thinking. One, more and less conventional terms, a dollar function than the binary function is simple,