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Elemente, probabil clasica
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Elemente, probabil clasica
Posted:
Wed May 21, 2008 7:54 pm
by
Filip Chindea
Sa se determine
\( k \in [0, 81] \)
pentru care, in orice triunghi,
\( 4kr^2 + (81-k)R^2 \ge 12p^2 \)
.