Question
Mathematics Question on Differential Equations
Which of the following functions is differentiable at x = 0?
A
cos (|x|) +|x|
B
cos (|x|) -|x|
C
sin (|x|) +|x|
D
sin (|x|) -|x|
Answer
sin (|x|) -|x|
Explanation
Solution
The correct answer is(D): sin (|x|) -|x|