określ dziedzine finkcji f(x)=x2-2 : (w ułamku) x-2 i oblicz jj wartośćdla argumentu -1/2
D: x-2≠0 (mianownik nie moze byc zerem)
x≠2
x∈R\{2}
f(-1/2) = ((-1/2)²-2)/(-1/2-2)=
=(1/4-2)/(-5/2)=
=(-7/4) *(-2/5)=
= 7/10
D:
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D: x-2≠0 (mianownik nie moze byc zerem)
x≠2
x∈R\{2}
f(-1/2) = ((-1/2)²-2)/(-1/2-2)=
=(1/4-2)/(-5/2)=
=(-7/4) *(-2/5)=
= 7/10
D: