. considere a equação ( y^2+2xy )dx- x^2 dy=0 . a) mostre que essa equação não é exata b) mostre que multiplicar os dois lados da equação por y^(-2) gera uma nova equação que é exata c) use a solução da equação exata resultante para solucionar a equação original. d) algumas soluções foram perdidas no processo?
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Category: statistics |
Author: Hedda Galya
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