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  • Help me answer: - Limit , continuity and differentiability - JEE Main-9

Number of point  of non diffrentiability of f(x)= 2x^{3}+x^{2}-x+1 equals  

  • Option 1)

    0

  • Option 2)

    1

  • Option 3)

    2

  • Option 4)

    3

 

Answers (1)

best_answer

 As we have learned

Properties of differentiable function -

Every polynomial function is differentiable at each x\epsilon R  

-

 

 \because f(x) is a polynomial and every polynomial is different for x\epsilon R  ,m so no. of required point is zero  

 

 

 

 

 

 


Option 1)

0

Option 2)

1

Option 3)

2

Option 4)

3

Posted by

Himanshu

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