Word Count : 201

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हमारे पास समुच्चय है: $$ S = \left\{\frac{1}{n} + \frac{1 + (-1)^n}{3} : n \in \mathbb{N} \right\}. $$ ध्यान दें कि $(-1)^n$ पर निर्भर करता है कि $n$ सम है या विषम। 1. यदि $n$ विषम है ($n = 1, 3, 5, \dots$) तो $(-1)^n = -1$। $$ \frac{1 + _________ _________ ________ ______ __________ ______ ___ __________.
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