Question
Question: The function f (x) = (x2 – 1) \|x2 – 3x + 2\| + cos (\|x\|) is not differentiable at...
The function f (x) = (x2 – 1) |x2 – 3x + 2| + cos (|x|) is not differentiable at
A
–1
B
0
C
1
D
2
Answer
2
Explanation
Solution
check differentiability at x = 1, 2, 0