What is the Tan(x) Function
The function tan(x)
$tan(x)=\frac { opposite }{ adjacent }$
The inverse of the function
$tan(x)=\frac { adjacent }{ opposite }$
Or you can also represent tan(x) by using sin(x) and cos(x)
$tan(x)=\frac { sin(x) }{ cos(x) }$