The following rebus is one that should be very familiar to a great number of people, but may require an unexpected thought process.
$(\huge ma$$)\ \epsilon \ 1$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \wedge$
$\small \color{red}{Note: Mathjax\ displays\ differently,\ per\ computer\ resolution,\ so\ here\ is}$
$\small \color{red}{what\ the\ question\ should\ look\ like\ if\ you're\ having\ trouble.}$