Unformatted text preview: (2 xy 3 + 3 x 2 + 2 y ) · dx + (3 x 2 y 2 + 2 x ) · dy = 0 . (7) Find an integrating factor μ = μ ( x ) or μ = μ ( y ), and solve the equation (2 xy ) · dx + ( y 23 x 2 ) · dy = 0 . (8) Solve y dx dy + x = y 2 . (9) Find the general solution of dr dθ = e r3 θ . (10) Solve the initial value problem dy dx = x 2 + xy + y 2 x 2 , y (1) = 0 . Additional problems: 139 (odd) on pages 8182; plus the homework problems. The key will be posted as a separate ﬁle. We will spend the class on 09/15/10 discussing (some of) the above problems....
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This note was uploaded on 12/15/2011 for the course MAP 2302 taught by Professor Tuncer during the Spring '08 term at University of Florida.
 Spring '08
 TUNCER

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