Math Problem Statement

Demostrar que : ∫1x dt/1+t^2 =∫1/x1 dt/1+t^2

Solution

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Math Problem Analysis

Mathematical Concepts

Integral Calculus
Change of Variables

Formulas

\( \int \frac{dt}{1+t^2} \)
Variable substitution: \( u = \frac{1}{t} \)

Theorems

Substitution Rule for Definite Integrals
Inverse Function Symmetry

Suitable Grade Level

University Level (Calculus I/II)