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**zobowashington** 1 ∫dx/(x√(2x^2+5x+1))

2. ∫dx/(x√(x^2+4x-2))

3. ∫dx/(sinx+13cosx-11)

4. ∫〖(x^2-x+4)ln(x+√(x^2-1) dx)〗

5. ∫e^cos2x sin4x dx

6. ∫x^3 e^x dx

7. ∫dx/〖(7-x^2)〗^(3⁄2)

8. ∫(arctg (x+1)/(x-1))/〖(x-1)〗^2 dx

9. ∫〖(x+1)arcsin〖(x+1)〗^2 〗 dx

10. ∫(〖sin〗^(6 ) x)/(〖cos〗^3 x ) dx

11. ∫〖〖sin〗^5 x〖cos〗^4 x dx〗

12. ∫dx/〖(2x^2+π)〗^(3⁄2)

13. ∫√((x+5)/(4x-7)) dx

14. ∫〖(ln(x^2-3x-4))/〖(x+2)〗^2 dx〗

15. ∫xln(4x^2-24x-28)dx

16. ∫e^(π^2 x) 〖sin〗^2 πx/2 dx

17. ∫e^4x cos5x dx

thanks very much..