As the hint says, consider the two cases x<1 and x>1 separately. In the x<1 case, you want to make sure that, so you need x > 0.905. In the x>1 case, you want to make sure that
, so you need x < 1.105. In the first case, you would need to set
to 1 - 0.905 = 0.095 or less, and in the second case, you would need to set
to 0.105 or less. Since you want both to be true, choose
.
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