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Differential Equations Solutions 109

Differential Equations Solutions 109 - Chapter 20 Solutions...

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Chapter 20 Solutions: Solution of Ordinary Differential Equations CHALLENGE 20.1. (Partial Solution) See the programs on the website. CHALLENGE 20.2. We need the real parts of all eigenvalues to be negative. This means 4 t 2 < 0 and t < 0, so the equation is stable when t > 2. CHALLENGE 20.3. The polynomial is p ( t ) = y n + ( t t n ) f n , so we compute
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