Q:

Concrete Roman operator names

Using any of the Concrete Roman packages together with eulervm seems to produce operator names such as \sin and \cos being typeset with a bitmap font. How can I have these rendered with a vector font, same as the text?
\documentclass[10pt]{article}

\usepackage{ccfonts}
\usepackage[euler-digits]{eulervm}
\usepackage[T1]{fontenc}
\usepackage{textcomp}

\usepackage{amsmath,amssymb,mathtools}

\begin{document}
Concrete Roman can write sin and cos in text, but not in math:
\begin{equation}
    \sin^2 x + \cos^2 x = 1
\end{equation}
\end{document}

A:

The solution is simple to do after the nice comments. Here there is the complete solution whete you not see \sin and \cos being typeset with a bitmap font.

\documentclass[a4paper,12pt]{article}
\usepackage[T1]{fontenc}
\usepackage{ccfonts}
\usepackage[euler-digits]{eulervm}
\usepackage{textcomp}
\usepackage{amsmath,amssymb,mathtools}
\begin{document}
Concrete Roman can write sin and cos in text, but not in math:
\begin{equation}
    \sin^2 x + \cos^2 x = 1
\end{equation}
\end{document}

