Solve question 17 please

9-48 Test the series for convergence or divergence. n2 - 1 9. n - 1 10. n=In' + 1 n3 + 1 00 11. E (-1 )on- - 1 n2 - 1 1=1 n' + 1 12. > (-1)" 1= n2 + 1 on 00 13. n 2n iM n 14. E ( 1 + n ) 3n 00 15. E 16. E (-1)7-124 n=2 nvInn n=1 4n 7 2n 17. E (-1)" 18. Ene-n' n=0 (2n)! n=1 00 19. + 20. IM n=1 3n k=1 kvk2+ 1