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Differential Equations Lecture Work Solutions 205

Differential Equations Lecture Work Solutions 205 - 6.4...

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6.4 Equations with Constant Coefficients Problems 1. Find the characteristic equation, characteristic curves and obtain a canonical form for a. 4 u xx + 5 u xy + u yy + u x + u y = 2 b. u xx + u xy + u yy + u x = 0 c. 3 u xx + 10 u xy + 3 u yy = x + 1 d. u xx + 2 u xy + 3 u yy + 4 u x + 5 u y + u = e x
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