#### Answer

$121.267892895^{o}$

#### Work Step by Step

Make sure that the setting for angles is "degrees".
$\cot^{-1}x$ is evaluated as $\left\{\begin{array}{lll}
\tan^{-1}(1/x) & if & x > 0\\
180^{o}+\tan^{-1}(1/x) & if & x <0
\end{array}\right.$
(x is negative here)
Keys:
"shift" or "2nd function"
"tan"
numerical keypad: (1$\div$(-0.60724226))
"="
numerical keypad: +180
"="
yields
$121.267892895^{o}$