9. [-/1 Points] DETAILS SCALCET9 11.5.007.MI. Test the series for convergence or divergence using the Alternating Series Test. [ (-1)n 9n - 1 n = 1 4n + 1 Identify bn. Evaluate the following limit. lim bn Since lim b ? |0 and bn + 1 ? |b, for all n, ---Select--- V 1 -oo Need Help? Read It Watch It Master It Submit Answer 10. [-/1 Points] DETAILS SCALCET9 11.6.021. Use the Root Test to determine whether the series convergent or divergent. n2+ 7 n = 1 60-+ 7 Identify an. Evaluate the following limit. lim V lal n -+ 00 Since lim V la | ? v 1, ---Select--- V Need Help? Read It Watch It