Need the answers with clear steps.

1. (p731, #28) Use either the Comparison Test or the Limit Comparison Test to determine whether the series is convergent or divergent. Show all work. (That is, provide sufficient justification for your conclusion). 00 1 en n n=1 2. (p736, #12) Test the series for convergence or divergence. Show all work. (That is, provide sufficient justification for your conclusion). 00 Z (_1)n+1ne n n=1 3. (p743, #18) Use the Ratio Test to determine whether the series is convergent or divergent. Show all work. (That is, provide sufficient justication for your conclusion). (I) n! 11\" n=1