If (x)=sqrt(x^2-2x+1),x in [0,2]then at ...

If (x)`=sqrt(x^2-2x+1),x in [0,2]`then at x=1f'(x)=__________

A

f'(x)=1 for all x

B

f'(x)=−1 for all x≤1

C

f'(x)=1 for all x>1

D

none of these

Verified by Experts

The correct Answer is:

A

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