MHB Indefinite Integral: $\int \frac{1}{\sqrt{\sin 2x}}dx$

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The integral $\int \frac{1}{\sqrt{\sin 2x}}dx$ is identified as not being elementary. It is classified as an elliptic integral of the first kind. The discussion emphasizes the complexity of this integral and the challenges in finding a closed-form solution. Participants express that standard techniques do not apply, necessitating the use of elliptic integral functions for evaluation. Understanding this integral requires knowledge of advanced calculus and elliptic functions.
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$\displaystyle \int \frac{1}{\sqrt{\sin 2x}}dx$
 
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jacks said:
$\displaystyle \int \frac{1}{\sqrt{\sin 2x}}dx$

How are you expecting this to be expressed? It is not elementary, but is an elliptic integral of the first kind.

CB
 
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