Revision as of 19:46, 18 August 2011 by Mrdavid445(talk | contribs)(Created page with "==Problem== What is the <math>1992^\text{nd}</math> letter in this sequence? <cmath>\text{ABCDEDCBAABCDEDCBAABCDEDCBAABCDEDC}\cdots </cmath> <math>\text{(A)}\ \text{A} \qquad ...")