Forum Studenti •Sistema di 2 equazioni in 2 incognite

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Forum Studenti •Sistema di 2 equazioni in 2 incognite

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Sistema di 2 equazioni in 2 incognite

Inviato: sabato 1 febbraio 2020, 14:07

da Valerio

cos(x+y) -19cosx=0

mgcos(x+y)-krsiny=0

Come risolvo il sistema di 2 incognite x e y e 2 equazioni? Sono riuscito a trovare solo le prime 4 delle 6 soluzioni possibili che allego in foto. Non importano tutti i calcoli svolti ma solo il concetto e come si imposta la soluzione di un sistema di questo genere. Grazie in anticipo per la gentile attenzione

Re: Sistema di 2 equazioni in 2 incognite

Inviato: sabato 1 febbraio 2020, 15:33

da Lorececco

Un buon punto di partenza è sviluppare quei coseni con la formula di addizione. A quel punto chiama e e aggiungi al sistema la condizione

Re: Sistema di 2 equazioni in 2 incognite

Inviato: sabato 1 febbraio 2020, 15:41

da Massimo Gobbino

Sposto nella sezione sui preliminari, che mi sembra più appropriata.

Re: Sistema di 2 equazioni in 2 incognite

Inviato: lunedì 3 febbraio 2020, 15:45

da Valerio

Re: Sistema di 2 equazioni in 2 incognite

Inviato: lunedì 3 febbraio 2020, 16:31

da Lorececco