1. F(x)=2x^5+3x^2-5
2. F(x)=cosx+e^x
3. F(x)=4^x-5sinx
4. F(x)=x^2/3-sinx
5. F(x)=3/cos^2x+7/x
6. F(x)=x^2+7+12
7. F(x)=8cosx-7e^x
8. F(x)=4/x-2/sin^2x
9. F(x)=sinx-5x+3^x
10. F(x)=x^3/2-cosx
11. F(x)=3+2x^2
12. F(x)=2e^x-3cosx
13. F(x)=7^x-6/x
14. F(x)=2/x^3-9/sin^2x
15. F(x)=sin x-e^x
16. F(x)=8x^4+3x^2-4x+6
17. F(x)=4cosx+9e^x
18. F(x)=-3/x+10/sin^2x
19. F(x)=15^x-sinx
20. F(x)=cosx-e^x