Answer
$$0.716386406$$
Work Step by Step
$$\eqalign{
& \cot \left( {\arccos 0.58236841} \right) \cr
& {\text{Find using a calculator, set the degree ,mode}} \cr
& \left. 1 \right){\text{ Press shift}} \cr
& \left. 2 \right){\text{ Press cos}} \cr
& \left. 3 \right){\text{ Type in the keys }}0.58236841 \cr
& \left. 5 \right){\text{ Press = }} \cr
& \left. 6 \right){\text{ Press tan}} \cr
& \left. 7 \right){\text{ Press ans}} \cr
& \left. 8 \right){\text{ Press = }} \cr
& \left. 9 \right){\text{ Type in the keys }}1 \div {\text{ans}} \cr
& \left. {10} \right){\text{ Press = }} \cr
& {\text{The result is }}0.716386406 \cr} $$
