December 2018 0 231 Report

1)Sa se determine probabilitatea,ca alegand un element din multimea {1,2,3,...,40} , numarul 2^{n+2}*6^n sa fie patrat perfect.


2)Sa se arate ca pentru oricare ar fi a ∈ R* , dreapta y=x+4 intersecteaza parabola y=ax² + (a-2)x +1 .

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