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\textbf{Math 228: Intro to Lin Alg \& Diff Eqns}
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\textbf{Quiz 9}\quad \textsl{April 11, 2002}
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1.  Find the general solution of $t y' - y - t^{2} \sin t = 0, \quad t >
0.$

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2.  Find the solution to the initial value problem $yy' + x^2 y^2 +
x^2 = 0, \quad y(1) = 0$.


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