DEX9 1 3. (4 points) Let an = - n - 1 n+3 for n 1. SEI M (a) Determine whether the sequence {an} converges. If so, to what number? If not, why not? lim 978 = 0 n h+z {und "Coneryes ven's Wildmi to d Sn (b) Determine a formula for the nth partial sum, sn, of this series [No need to simplify here.] M8 001 1 an = n + 3). n=1 n+3)(c) 21 73 (c) Does the sequence {sn} converge? If so, to what number? If not, why not? o on bui (d) Extra Practice 11 asgnsvib (d) Determine whether the series an converges. If so, what is the sum? 5+3 reddedeni 19 (b) (S). ("actoysvib rol jaded as won oels) pat vi ald (mijais *MI