# Thread: Having problem with solving undef integral

1. ## Having problem with solving undef integral

I have this integral which i dont know how to solve...i tried with wolfram matematica but i dont get reasonable result...

This is my problematic integral...
$\int\sqrt{1-2\ sin(x)}dx$

2. That is because thhis one is the proverbial booger. It involves Elliptic Integrals and is not doable by elementary means.

3. Originally Posted by galactus
That is because thhis one is the proverbial booger. It involves Elliptic Integrals and is not doable by elementary means.
I am loosing my mind with this one at least 2hrs, trying it to solve by hand, but no luck.

Anyway i dont understand what this integral is doing in exercise book at beginner section.

4. $\sqrt{1-2sin x}=\left|sin \frac{x}{2}-cos \frac{x}{2}\right|$