How do I find the value of cot330?

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Answer 1 · 2015-09-12T14:57:45

#-sqrt3#

Cot 330= cot 360-30 = cot -30= -cot 30=#-sqrt3#

Answer 2 · 2015-09-12T15:06:45

It is #cot(330)=-sqrt3#

We know that

#cot(330)=1/tan(330)#

Hence #tan(330)=tan(-30)#

#tan(-30)=-tan30=-sin30/cos30=-1/sqrt3#

So we finally have #cot(330)=-sqrt3#