Forum Studenti •Soluzioni reali

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Forum Studenti •Soluzioni reali

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Soluzioni reali

Inviato: sabato 25 gennaio 2014, 10:19

da GiacoMiche

Quando si parla di "avere una soluzione reale" , si intende anche piu e meno infinito ?
Perchè in un test ho trovato arctan(e^senhx)=0 ha soluzioni reali ? La soluzione è meno infinito , poichè arctanx=0 se e solo se x=0 ma e^x=0 se e solo se x=meno infinito e senh(meno infinito) è proprio uguale a meno infinito....
Quindi:Piu infinito e meno infinito,sono soluzioni reali?

Re: Soluzioni reali

Inviato: sabato 25 gennaio 2014, 14:34

da GIMUSI