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{\Large MATH 411, Spring 2001} \\[2mm]
{\LARGE Homework 3} \\[2mm]
{\large Due: 15, March, 2001}\\[2mm]
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R. Redheffer, {\it Differential Equations}:

[7.3]: 3(a). Hint: $g=32$ feet per second per second, one inch is $1/12$
foot; 

[7.4]: 8, 9;

[12.1]: 3(a,d,f,g), 7[b,c];

All problems are estimated by 20 points.
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