I have the following equation in my tex document:

```
\documentclass{article}
\begin{document}
\begin{equation}
x_{ij} = \frac{
\sum_{t}{e_i(t)e_j(t)}
} {
\sqrt{\sum_t{e_i^2(t)}}
\sqrt{\sum_t{e_j^2(t)}}
}
\end{equation}
\end{document}
```

The equation is printed like this:

The problem is that despite having almost the same content, the two square root symbols are rendered with a different size.

Is it possible to equalize the size of the two square root symbols?

## Best Answer