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shwin
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How does one evaluate [tex]\int (arctan(pi*x) - arctan(x))dx[/tex] from 0 to 2 by rewriting the integrand as an integral?
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The purpose of evaluating this integral is to find the area under the curve of the function Arctan(πx) - Arctan(x) from x=0 to x=2. This allows us to find the exact value of the integral and better understand the behavior of the function.
This integral can be evaluated using the substitution method, where we let u = πx and du = πdx. This transforms the integral into ∫(1/π)(Arctan(u) - Arctan(u/π)) du, which can then be solved using standard integral rules.
While this integral may seem complex, it can be easily solved using the substitution method and basic integral rules. However, it may require some algebraic manipulation and knowledge of trigonometric identities.
The final result of evaluating this integral is 1/π * (2Arctan(2π) - 2π + π/2). This can also be simplified to π/2 - Arctan(2).
The result of this integral can be used in various fields of science and engineering, such as in the calculation of electric fields, fluid flow, and heat transfer. It can also be used in the development of mathematical models and in solving differential equations.