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If the equation x^(2)- bx+ 1 = 0 does no...

If the equation `x^(2)- bx+ 1 = 0` does not possess real roots, then which one of the following is correct?

A

`-3 lt b lt 3`

B

`-2 lt b lt 2`

C

`b gt 2`

D

`b lt - 2`

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