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If b > a , then the equation (x-a)(x-b)-...

If `b > a ,` then the equation `(x-a)(x-b)-1=0` has (2000,1M) both roots in `(a , b)` both roots in `(-oo,a)` both roots in `(b ,+oo)` one root in `(-oo, a)` and the other in `(b ,oo)`

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