When you finish a tactic, on the website, you can open an analysis page for it. Some tactics may not have the full analysis but you should at least be able to copy the position over and test out moves.
If it was problem you recently completed, you can look at your peformance page and see if it is on there.
http://www.chess.com/tactics/stats
Is it possible to review and analyze problems in tactic section after i passed or not passed? I have perception that my solution was right, but it was accepted as wrong. I would like to see the position again and think about it.