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If x-(1)/(x)=1, then what is the value o...

If `x-(1)/(x)=1`, then what is the value of `((1)/(x-1)-(1)/(x+1)+(1)/(x^2 +1)-(1)/(x^2 -1))`?

A

`pm sqrt(5)`

B

`(2)/(5)`

C

`pm (2)/(sqrt(5))`

D

`pm (sqrt(5))/(2)`

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