T
trangtrang9x


[TEX]\int\limits_{-\Pi}^{\Pi}\frac{sin^2x}{3^x+1}dx[/TEX]
[TEX]\int\limits_{0}^{ln2}\frac{1}{\sqrt{e^x+1}}dx[/TEX]
[TEX]\int\limits_{\frac{-\pi}{2}}^{\frac{\pi}{2}}cosxln(x+\sqrt{x^2+1})dx[/TEX]
[TEX]\int\limits_{0}^{ln2}\frac{1}{\sqrt{e^x+1}}dx[/TEX]
[TEX]\int\limits_{\frac{-\pi}{2}}^{\frac{\pi}{2}}cosxln(x+\sqrt{x^2+1})dx[/TEX]
Last edited by a moderator: