Question
Mathematics Question on sets
The set of points, where f(x)=1+∣x∣x is differentiable, is:
A
(-∞,-1)∪(-1,∞)
B
(-∞,∞)
C
(0,∞)
D
(-∞,0)∪(0,∞)
Answer
(-∞,∞)
Explanation
Solution
The correct option is (B): (-∞,∞)
The set of points, where f(x)=1+∣x∣x is differentiable, is:
(-∞,-1)∪(-1,∞)
(-∞,∞)
(0,∞)
(-∞,0)∪(0,∞)
(-∞,∞)
The correct option is (B): (-∞,∞)