From time to time, I may assign extra problems during the week. These are not considered part of the problem set (unless I say otherwise) and are not to be turned in. I do, however, expect that you will have attempted them before the next class, as they usually are designed to lead into the material we are about to cover. I may ask someone from the class to give his or her solution to the problem. You may work with others on them if you wish.
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