M
maruko_b1st
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Nhờ mọi ng` giúp tớ bài này
[tex]\int\limits_{0}^{\frac{\pi}{2}} \frac{sin2x}{\sqrt{cos^2x+4sin^2x}}dx[/tex]
Cảm ơn nhiều![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
:-* :-* :-* :-*
[tex]\int\limits_{0}^{\frac{\pi}{2}} \frac{sin2x}{\sqrt{cos^2x+4sin^2x}}dx[/tex]
Cảm ơn nhiều
:-* :-* :-* :-*