Descriptions and test
various test items. Copyright© 2005 by the College
Board. Reproduced with permission. All rights
reserved. < http://apcentral.collegeboard.com >.
The problems have been reprinted with permission
by the College Board, the copyright owner,
and may not be mass distributed or resold,
electronically or otherwise. Solutions
to these problems were suggested by Randolph
Cooper, Shirley Gray and Stewart Venit.
Unauthorized use, reproduction, duplication,
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in part or in whole, is forbidden by law.