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3. Argument i wartość funkcji. Miejsca zerowe funkcji
Przykład 3.10
[url]http://www.epodreczniki.pl/reader/c/1309/m/iPW504t2Sq[/url]
Odczytaj z wykresu funkcji [math]f[/math] liczbę rozwiązań równania [math]f(x)=m[/math].