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数形结合与数形转化的目的是为了发挥形的生动和直观性,发挥数的思路的规范与严密性,两者相辅相成,扬长避短.如果这道题你选择数形结合的方法来解,那么这种方法必须具有明显的优势和特点:
The purpose of the number combination and the number conversion is to play a vivid and intuitive shape, to play a number of ideas of the norms and rigor of the two complement each other and avoid weaknesses if the problem you choose to form a combination of methods to solve, then This method must have distinct advantages and characteristics: