M
manhonline_1301


[TEX]\int_{\frac{\pi}{3}}^{\frac{\pi}{2}}\frac{\sqrt{sin^3x-sinx}}{sin^3x}cotxdx[/TEX]
[TEX]\int_{0}^{\frac{\pi}{2}}\frac{3sinx+4cosx}{3sin^2x+4cosx^2x}dx[/TEX]
[TEX]\int_{0}^{\frac{\pi}{2}}\frac{3sinx+4cosx}{3sin^2x+4cosx^2x}dx[/TEX]