SubArea: Limit of a sequenceLevel: CProject ID: 2010005309Source Problem: 2010005308Accepted: 0Clonable: 1Easy: 0Find the limit \[ \lim\limits_{n\to\infty} \left( \frac{1+2+3+\dots+n}{1-2n^2}\right). \]\(- \frac{1}{4}\)\( 1\)\( 0\)\( \infty \)
