<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\documentclass{article}
\usepackage[varg]{txfonts}
\usepackage[no-math]{fontspec}
\usepackage[russian]{babel}
\usepackage{xecyr}

\setmainfont{Times New Roman}
\setsansfont{Arial}
\setmonofont{Courier New}

\begin{document}

Ð—Ð´ÐµÑÑŒ Ð¸Ð´ÐµÑ‚ Ñ€ÑƒÑÑÐºÐ¸Ð¹ Ñ‚ÐµÐºÑÑ‚. Â«ÐšÐ°Ð²Ñ‹Ñ‡ÐºÐ¸Â» â€” Ñ‚Ð¸Ñ€Ðµ.
\textsf{Ð—Ð´ÐµÑÑŒ Ñ‚Ð¾Ð¶Ðµ Ð¸Ð´ÐµÑ‚ Ñ€ÑƒÑÑÐºÐ¸Ð¹}. ÐŸÐµÑ€ÐµÐ½Ð¾Ñ.
Ð¡Ð¸Ð¼Ð²Ð¾Ð»Ñ‹ âˆ«â™€. Ð¤Ð¾Ñ€Ð¼ÑƒÐ»Ð° Ñ Ð¸ÑÐ¿Ð¾Ð»ÑŒÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ \texttt{txfonts}:

\[ \gamma = \frac{1}{\sqrt{1 - v^2/c^2}} \].

\end{document}</pre></body></html>