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\leftline{Mathematics 242 -- Principles of Analysis}
\leftline{Definitions Quiz 5 -- October 21, 2005}
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\leftline{Your Name: $\underline{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }$}
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\item{1.} What is the definition of {\it convergence for an infinite series}
$\sum_{k=1}^\infty a_k$?
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\item{2.} Give an example of a {\it conditionally convergent} series,
and explain how you can tell that it is.
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