Signals and systems/Sinusoidal signals

${\displaystyle x(t)=A*cos(b*t+c)}$
where ${\displaystyle A}$ - amplitude
${\displaystyle b={\frac {2\pi }{T}}}$; ${\displaystyle T}$ - period
${\displaystyle c}$- phase

cosine - is an even function ${\displaystyle x(t)=x(-t)}$
sine - is an odd function ${\displaystyle x(t)=-x(-t)}$

sine function possible to flip horizontally and then flip vertically, as result -same function and plot