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Initial analysis on definite integral methods in solving practical problems

Gaixia Song

Definite integral methods are widely used in solving practical problems. The methods of solving practical problems in geometry, physics, economics, and so on are discussed in this paper. Mastering some certain integral calculation methods will certainly help to solve some practical problems in life. From these few simple examples, we can see that to solve the practical problems of definite integral, the most important thing is to digitize the problem, and then writing out the formula by using the mathematical theory, and finally calculating the results by using integral principle