Mathematics, 26.07.2019 09:00 torybobadilla
Nas equacoes do segundo grau: x ao quadrado +9=0 e x ao quadrado menos 3x=0 i as duas equacoes possuem raizes reais ii apenas uma das equacoes pode ser resolvida no conjunto dos numeros reais iii nenhuma das equacoes tem solucao no conjunto dos numeros reais iv para obter a solucao de uma das equacoes Ă© preciso recorrer ao conjunto dos numeros complexos. quais dessas sao corretas?
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Nas equacoes do segundo grau: x ao quadrado +9=0 e x ao quadrado menos 3x=0 i as duas equacoes poss...
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