9-26 Determine whether the sequence is convergent or diver- gent. If it is convergent, find the limit. 9. an T 3n 10. a 53 2n2n-1 11. an= 12. a n 3+5n 13. an 14. a 2+7n 15. a, 1(0.2)" 16. a. 2"+6