\( \int _ { - 1 } ^ { 1 } \operatorname { coth } x d x \)
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The Deep Dive
Did you know that the integral of \( \operatorname{coth} x \) over a symmetric interval around zero, like from -1 to 1, showcases the beauty of odd and even functions? The function \( \operatorname{coth} x \) is an odd function, meaning that \( \operatorname{coth}(-x) = -\operatorname{coth}(x) \). Thus, when integrating an odd function over a symmetric interval, the result always equals zero. So, this integral evaluates to \(0\)! If you want to dive deeper into integrals, consider exploring applications in physics, like determining the behavior of light or sound waves. The properties of functions and their integrals often lead to fascinating insights in various scientific fields, enhancing our understanding of the world around us!