Question

Determinati domeniul de definitie al functiei definite prin formula
f(x)=√4-x² supra 2x-1.
Ajutatima cit mai repede .

Answer 1

4-x²≥0, (2-x)(2+x)≥0, x∈[-2,2]

2x+1≠0, x≠1/2
D=[-2,2]-{1/2}