GATE 2026 DA – Question 4
Consider two distinct positive real numbers $m$, $n$, with $m > n$.
Let $x = n^{\log_{10}(m)}$ and $y = m^{\log_{10}(n)}$. The relation between $x$ and $y$ is _______.
Practise this question in The GATE Grind →
Show answer and explanation
Correct answer: (C) $x = y$
Explanation
Take $\log_{10}$ of both: $\log_{10}x = \log_{10}(m)\cdot\log_{10}(n)$ and $\log_{10}y = \log_{10}(n)\cdot\log_{10}(m)$. The two are the same, so $x = y$.