Keyword: «definite integral»

In this article, a basic scheme of proving theorems from definition to final assertion is considered. A template for decoding the definition of the limit of a Cauchy function is proposed. A special attention is paid to the link between theory and practice considered on specific tasks and theoretical conclusions of formulas. The methodological approach to the presentation of the theory is illustrated by the topics of the course "Mathematical Analysis".

Mathematics plays a key role in modern economics, being the foundation for data analysis, modeling and forecasting. This article shows the application of some mathematical concepts in economics.