How do you evaluate $cot 30$ $cot 30$ ?

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Answer 1 · 2015-05-15T14:36:54

$cot 30 = \frac{1}{tan 30}$ $cot 30 = 1/tan 30$

Trig conversion table gives: $tan 30 = \frac{s q r 3}{3}$ $tan 30 = (sqr3)/3$ , then

$cot 30 = \frac{3}{s q r 3} = \frac{3 s q r 3}{3} = s q r 3$ $cot 30 = 3/(sqr3) = (3sqr3)/3 = sqr3$

Answer 2 · 2015-05-15T14:38:25

Assuming your "30" is 30 degrees:
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$cot = \frac{adjacent}{opposite}$ $cot = "adjacent"/"opposite"$

$cot (30^{o}) = \sqrt{3}$ $cot(30^o) = sqrt(3)$

How do you evaluate cot 30cot30cot 30?