Beats with 3 frequencies

Your browser does not support the canvas element.    \[ \begin{equation} \large x = A_1\cos(\omega_1t)+A_2\cos(\omega_2t)+A_3\cos(\omega_3t). \end{equation} \]

$A_1=$1 [m]

$A_2=$1 [m]

$A_3=$1 [m]

$\omega_1=$1 [rad/s]

$\omega_2=$1 [rad/s]

$\omega_3=$1 [rad/s]