Question 7
For how many integers $n$ does the expression
$$
\sqrt{\frac{\log(n^2)-(\log n)^2}{\log n-3}}
$$
represent a real number, where $\log$ denotes the base $10$ logarithm?
$$
\sqrt{\frac{\log(n^2)-(\log n)^2}{\log n-3}}
$$
represent a real number, where $\log$ denotes the base $10$ logarithm?