forum.matefbc.ro • Vezi subiect - Un numar rational

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forum.matefbc.ro • Vezi subiect - Un numar rational

Un numar rational

7 mesaje • Pagina 1 din 1

Un numar rational

de Intrebatorul » Lun Iul 27, 2009 4:54 am

Numarul , unde , poate fi un numar rational?

Intrebatorul: Mesaje: 48; Membru din: Sâm Iun 27, 2009 5:41 am

Re: Un numar rational

de Mateescu Constantin » Lun Iul 27, 2009 11:14 am

Daca numarul e evident rational.

Mateescu Constantin: Mesaje: 8; Membru din: Lun Iun 29, 2009 7:06 pm

Re: Un numar rational

de Intrebatorul » Lun Iul 27, 2009 5:44 pm

Intrebatorul: Mesaje: 48; Membru din: Sâm Iun 27, 2009 5:41 am

Re: Un numar rational

de cipriancx » Mar Iul 28, 2009 2:20 pm

care este rational oricare ar fi a,b,c,d rationale,nenule, cu bc=ad.

Fie b,c,a alese arbitrar, rezulta ca .
Cum b,c,a au fost alese arbitrar, rezulta ca exista o infinitate de numere rationale a,b,c,d astfel incat raportul sa fie numar rational.

cipriancx: Site Admin; Mesaje: 407; Membru din: Mar Iun 23, 2009 3:22 pm; Localitate: Bacau

Re: Un numar rational

de Intrebatorul » Mar Iul 28, 2009 6:09 pm

Intrebatorul: Mesaje: 48; Membru din: Sâm Iun 27, 2009 5:41 am

Re: Un numar rational

de cipriancx » Mar Iul 28, 2009 6:33 pm

Oricum exista o infinitate.

cipriancx: Site Admin; Mesaje: 407; Membru din: Mar Iun 23, 2009 3:22 pm; Localitate: Bacau

Re: Un numar rational

de Intrebatorul » Mar Iul 28, 2009 6:35 pm

Intrebatorul: Mesaje: 48; Membru din: Sâm Iun 27, 2009 5:41 am

7 mesaje • Pagina 1 din 1

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