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If both the roots of the quadratic equa,...

If both the roots of the quadratic equa,tion `x^2-2kx+k^2+k-5=0` are less than 5 then k lies i the interval (A) `[4,5]` (B) `9-oo,4)` (C) `6,oo)` (D) `95,6]`

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