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间接计算,是指不直接根据已知条件来获取与之相关的未知条件,而是通过其他的方式来计算数学问题,使数学问题变得简单的计算方法。一般做数学计算题应该找到已知条件和未知条件,结合已知条件来进行计算。但有些数学问题非常复杂,或有些数学问题欠缺计算的已知条件,这时就可以应用间接计算的方法来解决数学问题。现用三道例
Indirect calculation refers to the method of calculating mathematical problems by calculating math problems in other ways without obtaining the unknown conditions directly related to the known conditions. Generally do mathematical calculations should find the known conditions and unknown conditions, combined with the known conditions to be calculated. However, some mathematical problems are very complicated, or some math problems lack the known conditions of calculation. At this time, indirect calculation can be applied to solve mathematical problems. Now use three cases