31.1.2013 | 00:29
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Boh8eia..8elw na lisw aftin tin gamimeni askisi...Dinetai sinartisi f 2 fores paragwgisimo sto [1,e] kai isxuei f(1)=2 kai f(e)=e+1 kai sinolo timwn ths f to Rf=[1,4]..akomi isxuei oti f'(x1)=f'(x2)=0 kai iparxei 1 toulaxiston ξΕ(χ1,χ2) tetoio wste f''(ξ)=0Na dei3ete oti uparxei 1 toulaxiston xΕ(1,e) tetoio wste na isxuei :f(x)[f'(x)-4f {eis tin tetarti}(x)]=x