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forum.matefbc.ro • Vezi subiect - Subiecte clasa a11a

Subiecte clasa a11a

Clasa a11a

Subiecte clasa a11a

Mesajde cipriancx » Vin Iul 03, 2009 6:55 am

Aici vor fi postate subiectele pentru clasa a11a.
cipriancx
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Re: Subiecte clasa a11a

Mesajde aleph » Vin Iul 03, 2009 6:58 am

Subiectele clasa a XI-a:
SUBIECTUL I

Fie doua matrice de ordinul 2, cu elemente reale. Sa se arate ca: .


SUBIECTUL II

Fie sirul , astfel incat, pentru orice progresie aritmetica de numere naturale , cu si , sirul este progresie geometrica. Sa se arate ca este progresie geometrica.


SUBIECTUL III

Fie si astfel incat . Sa se arate ca daca este un numar real. atunci si sunt numere reale.


SUBIECTUL IV

Daca , demonstrati ca: .


SUBIECTUL V

Fie sirul dat de . Sa se calculeze .


SUBIECTUL VI

Fie si doua matrici patratice de ordin , care au pe fiecare linie si pe fiecare coloana un element egal cu 1, iar restul elementelor 0. Sa se arate ca daca , oricare ar fi , atunci .

Timp de lucru: 24h. Fiecare problema se puncteaza la 0 la 7 puncte.

Pentru varianta pdf, faceti click .
SUCCES!
aleph
 
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