Question
Mathematics Question on Relations and Functions
The domain of the function f(x) = log (x2−4) is:
A
[2,∞)
B
(-∞,-2) U (2,∞)
C
(2,∞)
D
(-∞, -2] U (-2, −1)
Answer
(-∞,-2) U (2,∞)
Explanation
Solution
The correct option is(B):(-∞,-2) U (2,∞)
The domain of the function f(x) = log (x2−4) is:
[2,∞)
(-∞,-2) U (2,∞)
(2,∞)
(-∞, -2] U (-2, −1)
(-∞,-2) U (2,∞)
The correct option is(B):(-∞,-2) U (2,∞)