If f(x)={{:((x-1)/(2x^(2)-7x+5)",","for"...

If `f(x)={{:((x-1)/(2x^(2)-7x+5)",","for"xne1),(-(1)/(3)",","for"x=1):}`then f'(1) is equal to

A

`-(1)/(9)`

B

`-(2)/(9)`

C

`-13`

D

`(1)/(3)`

Verified by Experts

The correct Answer is:

B

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