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{\bf \centerline{ Math 261, Fall 2000
Homework}}
\vspace{1 em}
\noindent {\bf 1.1} 1ab, 2a, 3a, 4, 7

\noindent {\bf 1.2} 1, 2, 3, 4aceg, 9,
10, 11, 16, 17, 18, 20, 22

\noindent{\bf 1.3} 1, 2ab, 3, 4, 5, 6, 8abf,
11, 12, 17, 19, 20, 23, 28, 30, 31 

\noindent{\bf 1.4} 1, 2ac, 3ab, 4ab, 5, 9, 11,
12, 13, 14, 15

\noindent{\bf 1.5} 1, 2, 5, 6, 8, 9, 11, 13, 17

\noindent{\bf 1.6} 1, 2ab, 3ab, 7, 15, 19, 21,
27, 30, 32

\noindent{\bf 1.7} 1, 3, 5, 6

\vspace{.5em}

\noindent{\bf 2.1} 1, 2, 5, 7, 9ab,  10, 12,
15, 18, 19, 20, 22, 25, 26 ,27, 28, 34 
 
\noindent{\bf 2.2} 1, 2ab, 3, 6, 7, 8, 10, 15

\noindent{\bf 2.3} 1, 2, 3, 5, 6, 11, 12, 14,
15,16 

\noindent{\bf 2.4} 1, 2, 3, 6, 7, 8, 10, 12,
15, 18, 19, 22

\noindent{\bf 2.5} 1, 2ab, 3ac, 7, 8, 9, 10,
11, 12

\noindent{\bf 2.6} 1, 2, 4, 6,  11, 13,14,15 

\noindent{\bf 2.7} 1, 3ab, 10, 11

\vspace{.5em} 
\noindent{\bf 3.1} 1, 2, 6, 7

\noindent{\bf 3.2} 1, 2abe, 3, 4, 5ace, 6a, 9,
13, 14

\noindent{\bf 3.3} 1, 2ab, 3ab, 4, 7ab, 10

\noindent{\bf 3.4} 1, 2ab, 3, 6, 9, 10, 15

\vspace{.5em} 

\noindent{\bf 4.1} 1, 2a, 3a, 4a, 7, 8

\noindent{\bf 4.2} 1, 2, 3, 4, 5, 13, 15,
19, 23,  24

\noindent{\bf 4.3} 1, 2, 3, 9, 10, 11, 12,
14, 19, 20, 21, 23, 25a     

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