Calculus

1:

What is the derivative of f(x) =  | x | at x = 0 

A.

1

B.

-1

C.

0

D.

Does not exist

 

Answer : D

Explanation :

f(x) = |x| and f(x) = x for x > 0 ⇒f(x) = -x for x < 0

Calculus questions

Hence from the graph it is clear that derivative doesn't exists for x=0

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Option: A

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