What is $cot(-150)$ ?

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Answer 1 · 2016-05-24T23:53:59

$sqrt(3)$ (Assuming units are degrees)

Assuming the units here are degrees:
$tan(-150) = tan(30) = 1/sqrt(3)$
$cot(x) = 1/tan(x)$

Hence: $cot(-150) = sqrt(3)$

What is cot(-150)cot(-150)?