... the general solution for the equation [i]y[/i]²= 2[i]y[/i] + 2cos3[i]x[/i]?[br][right]Forrás: [url=https://mail.google.com/mail/u/0/#inbox/FMfcgzQXKqkcxXltGzKZqDljsJqHQKTj]Quora[/url][br][/right]