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在解直角三角形或研究三角函数问题中,经常用到勾股数,熟记几组勾股数对提高运算速度十分有益,怎样才能趣记巧记而不死记硬背呢?关键是找到勾股数间的内在联系。请看下面几组勾股数:
In solving the right-angled triangle or studying the trigonometric function, the number of hooks is often used. It is very useful to memorize several groups of the number of shares to improve the speed of operation. How to remember how to remember but not to remember? The key is to find the Pythagorean Several internal links. Please see the following groups of guaranty numbers: