Question

Determinati domeniul de definitie al functiei definite prin formula:
f(x)=radical din 4-x^2
---------- Va rog mult!!:)
2x-1

Answer 1

4-x²>=0
(2-x)(2+x)>=0
x∈(-∞, -2] U [2,∞)
2x-1≠0
2x≠1, x≠1/2
x∈(-∞, -2] U [2,∞) \{1/2}