The complete set of values of k , for wh...

The complete set of values of `k ,` for which the quadratic `x^2-k x+k+2=0` has equal roots, consists of

A

`2+sqrt(12)`

B

`2+-sqrt(12)`

C

`2-sqrt(12)`

D

`-2-sqrt(12)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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