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lim(xto oo) (sqrt(x^(2)-x+1)-(ax+b))=0 t...

`lim_(xto oo) (sqrt(x^(2)-x+1)-(ax+b))=0` then for `kge2, kepsilonN` which of the following is/are correct?

A

`(a+b)` is a prime number

B

`(a+b)` is an even nuber

C

`(a+b)` is an odd number

D

b is neither prime nor a composite number

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