T
tony11b5


[tex]\int\frac{x^2-1}{x^4+1}dx[/tex]
[tex]\int\frac{1}{1+3^x}dx[/tex]
[tex]\int\frac{1}{x^3+1}dx[/tex]
[tex]\int\frac{sinx}{1+sinx}[/tex]
[tex]\int\frac{1}{cosx*cos(x+frac{\pi}{4})dx[/tex]
[tex]\int\frac{1}{1+3^x}dx[/tex]
[tex]\int\frac{1}{x^3+1}dx[/tex]
[tex]\int\frac{sinx}{1+sinx}[/tex]
[tex]\int\frac{1}{cosx*cos(x+frac{\pi}{4})dx[/tex]
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