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If roots of x^2-(a-3)x+a=0 are such that...

If roots of `x^2-(a-3)x+a=0` are such that at least one of them is greater than 2, then `a in [7,9]` b. `a in [7,oo]` c. `a in [9,oo]` d. `a in [7,9]`

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