If alpha and beta are the roots of the q...

If `alpha and beta` are the roots of the quadratic equation `ax^(2)+bx+1`, then the value of `(1)/(alpha beta)+(alpha+beta)` is

A

`(a^(2)+b)/(a)`

B

`(a^(2)-b)/(a)`

C

`(a^(2)+b)/(b)`

D

`(a^(2)-b)/(b)`

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