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{
\bf Attendance Quiz \# 20 for Dr. Z.'s Number Theory
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{\bf NAME:} (print!) $\underline
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{\bf E-MAIL ADDRESS:} (print!) 
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{\bf 1.} By `brute force', Find the set of quadratic residues, and the set of quadratic non-residues of $p=13$.
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{\bf 2.}  Using the Quadratic Reciprocity Law and Rules 1-3, find (no credit for other methods) 
$$
\left ( \frac{7}{17} \right ) 
$$




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