lim⁡n→∞{(nn+1)a+sin⁡1n}n\lim_{n \rightarrow \infty}\left\{\left(\frac{n}{n+1}\right)^a + \sin\frac{1}{n}\right\}^n…

Mathematics

Problem

lim⁡n→∞{(nn+1)a+sin⁡1n}n\lim_{n \rightarrow \infty}\left\{\left(\frac{n}{n+1}\right)^a + \sin\frac{1}{n}\right\}^n (when a∈Qa \in \mathbb{Q}) is equal to (a) e−ae^{-a} (b) −a-a (c) e1−ae^{1-a} (d) e1+ae^{1+a}

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