Answer
$\cot{70^o}\approx 0.36$
Work Step by Step
RECALL:
$\cot{x} = \dfrac{1}{\tan{x}}$
Use a scientific calculator in degree mode.
Round-off answer to two decimal places to obtain:
$\cot{70^o} =\dfrac{1}{\tan{70^o}} \approx 0.36$