How to write copyright in Latex ?

How to write trademark in Latex ?

How to write registered in Latex ?

\documentclass[12pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\begin{document}
\noindent
Copyright: \copyright Math-Linux.Com\\
Trademark: \texttrademark or \textsuperscript{TM} Math-Linux.Com  \\
Registered: \textregistered Math-Linux.Com \\
\end{document}