Forum Studenti •Dubbio esercizio n 4 funzioni 3 eserciziario

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Forum Studenti •Dubbio esercizio n 4 funzioni 3 eserciziario

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Dubbio esercizio n 4 funzioni 3 eserciziario

Inviato: venerdì 22 ottobre 2010, 20:52

da kyra84

Buona sera, stavo svolgendo l'esercizio di cui in oggetto e non riesco a capire come mai f(A) = ]1,16[

La funzione f: R -> R f(x)= (x-3)^2
A= ]0,2[U]5,7[
richiede di calcolare f(A)
Ora, essendo estremi esclusi a me viene f(A) = ]1,4[U]4,6[U]6,9[U]9,16[
ma come risultato dell'esercizio è indicato f(A)= ]1,16[

potreste spiegarmi dove ho sbagliato?

Grazie mille

credo di poterti aiutare

Inviato: domenica 7 novembre 2010, 15:55

da Peppe1000

Inviato: domenica 7 novembre 2010, 16:02

da Peppe1000