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Consider the sequence \((u_n)\) defined for all \(n \in \mathbb{N}\) by \(u_n = \dfrac{2n+1}{n+1}\). Which statement(s) are true?
The sequence is bounded between \(0.5\) and \(2\).
The sequence is lower bounded by \(1\).
The sequence is not bounded because it tends toward \(2\).
The sequence is upper bounded by \(2\).
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