1. Determine whether or not the alternating series converge or diverge. (-1)" (a) In(n2 +1) E(-1) "+1 n - 2n + 2 (b ) n=1 7n2 -2n +1 2. Determine whether the series converges absolutely, or converges conditionally, or diverges and give reasons for your conclusions. (-1)"+1 (a) n=0 V3n + 1 (b) n=1 3. Use Ratio Test or Root Test to determine whether the following infinite series are absolutely convergent. (-1)"+1 3" a) n' In(n) (b ) n