Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Relations and Functions Domain of a Relation
What is the range of the function f(x) = x + |x| if the domain is the set of real numbers ?
1
(0, ∞)
2
[0, ∞)
3
(-∞, ∞)
4
More than one of the above
5
None of the above