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> Trigonometrija, Trigonometrija

popina
post Feb 10 2011, 08:32 PM
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Group: Članovi
Joined: 10-February 11
Member No.: 1.330
Status: Van MGa



Da li bi mogla mala pomoc?
Ako je x ugao trougla tj. x∈(0,π) dokazati da je
sin(x)+2cos(x/2)≤(3√3)/2.
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