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If the both the roots of the quadratic e...

If the both the roots of the quadratic equation `x^(2)-2kx+k^(2)+k-5=0` are less than 5, then k

A

`(6,oo)`

B

`(5,6)`

C

`(4,5)`

D

`(-oo,4)`

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The correct Answer is:
D
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