Write the value of the derivation of f(x) = |x – 1| + |x – 3| at x = 2.
As we need to differentiate f(x) = |x – 3| + |x – 1|
We know the property of a mod function that–
∴
∴
Hence,
As
∴
From above equation, we can say that
value of derivative at x = 2 is 0 ⇒ f’(2) = 0