http://img215.imageshack.us/img215/8624/limitscz6.jpg [Broken] That's the question and the answer. I don't get why it converges to -1/2 and how you can tell just by looking. Maybe I'm not understanding well enough but I understand how to find the limit, just I thought the limit to infinity showed that 0 was what it converged to, not -1/2. Any help? Thanks.