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\noindent{\Large{\textsc{Complex Variables\hfill Assignment 11.2  \\ Spring 2020 \hfill Due April 22}}}

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\begin{exercise}
Textbook exercise IV.6.2.
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\begin{exercise}
Prove that if the series $\displaystyle \sum_{k=0}^{\infty} a_k$ and $\displaystyle \sum_{k=0}^{\infty} b_k$ both converge absolutely, then so does their Cauchy product. [{\em Suggestion:}  Apply the theorem proven in class to the series $\sum |a_k|$ and $\sum |b_k|$, and use the comparison test.]
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