Concursul "Ion Ciolac" problema 2
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Concursul "Ion Ciolac" problema 2
Fie \( f:[0,\frac{\pi}{2}] \)\{0}\( \to\mathbb{R},\ f(x)=x+ctgx \). Aratati ca f este monotona.
Last edited by BogdanCNFB on Sat Apr 25, 2009 11:45 am, edited 1 time in total.
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