If m and n are distinct natural numbers, then which of the following is/are integer/integers?
1. (m/n + n/m)
2. mn[(m/n + n/m)(m² + n²)^–1]
3. mn / (m² + n²)
Select the correct answer using the code given below.
Mathematics
2016
CDS Elementary Mathematics 2016
CDS 2016
Options
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