## Trigonometry (11th Edition) Clone

$0.2095$
$\tan s=0.2126$ can be written as $s=\tan^{-1} (0.2126)$. Ensuring that the calculator is in radians, we type $\tan^{-1} (0.2126)$ into the calculator and solve: $s=\tan^{-1} (0.2126)\approx0.2095$