The Critical Points Of The Function f (x) Where 

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Question

The critical points of the function f (x) where 

Solution

Correct option is

0 , 2, 4

Critical points  

             

   

Clearly       

So       x = 4 is a critical point   

           x = 2 is also a critical point   

because f’(x) is not defined at x = 2    

And x = 0 is a critical  point as f (x) is discontinuous at x = 0.

 

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