B
bayl3nth3sky


1/
[tex]\int\limits_{0}^{\frac{\pi}{2}}\frac{sin2x-3cosx}{(2sinx+1)^2}dx[/tex]
2/
[tex]\int\limits_{\frac{\pi}{6}}^{\frac{\pi}{4}}\frac{2}{sinx.sin2x}dx[/tex]
[tex]\int\limits_{0}^{\frac{\pi}{2}}\frac{sin2x-3cosx}{(2sinx+1)^2}dx[/tex]
2/
[tex]\int\limits_{\frac{\pi}{6}}^{\frac{\pi}{4}}\frac{2}{sinx.sin2x}dx[/tex]