Forum Studenti •Domanda semplice

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Forum Studenti •Domanda semplice

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Domanda semplice

Inviato: giovedì 23 giugno 2016, 0:22

da Valerio

Ho provato a risolvere la seguente equazione differenziale:

u'+utant=cost

Ho trovato come soluzione u(t)= t cost + C IcostI. Dove C è la costante. Ora mi chiedo, essendo il valore assoluto del coseno a moltiplicare la costante, posso tranquillamente sbattere via il valore assoluto e dire che la soluzione dell'equazione è u(t)= t cost + C cost ?

Re: Domanda semplice

Inviato: giovedì 23 giugno 2016, 22:47

da GIMUSI

credo proprio di sì...se hai il dubbio puoi provare anche a fare la verifica

Re: Domanda semplice

Inviato: venerdì 24 giugno 2016, 16:32

da Massimo Gobbino