y=2/x^{2} - 9 Oblicz dziedzine funkcji.
D = R - {-3; 3}
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Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)
założenie:
x²-9≠0
(x-3)(x+3)≠0
x≠3 i x≠-3
Df = R - {-3,3}
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D = R - {-3; 3}
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)
założenie:
x²-9≠0
(x-3)(x+3)≠0
x≠3 i x≠-3
Df = R - {-3,3}