3. (5 points each) Discuss the convergence of the following series, using any of the con- vergence tests we've studied. Prove your result, and show all your work. If you choose to use a given convergence test, make sure to justify that the test actually applies to the given problem. DO (a) 1 M nn (c) Vn + 4 n2 Hint: A comparison might help. n=1 In n ( b ) (d) k + 2 IM oil iM 8 n k + 10