How do you find the exact values of the six trig functions of angle 120?

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Lorenzo Acosta · Accepted Answer

sin  ⁡      120          ∘        =  sin  ⁡  (      180          ∘      −              60                  ∘                      )  =  sin  ⁡      60          ∘        =            3        2    cos  ⁡      120          ∘        =  cos  ⁡  (      180          ∘        −      60          ∘        )  =  −  cos  ⁡      60          ∘        =  −      1    2    tan  ⁡      120          ∘        =  tan  ⁡  (      180          ∘        −      60          ∘        )  =  −  tan  ⁡      60          ∘        =  −      3    cos  ⁡  e  c      120          ∘        =  cos  ⁡  e  c  (      180          ∘        −      60          ∘        )  =  cos  ⁡  e  c      60          ∘        =      2          3        sec  ⁡      120          ∘        =  sec  ⁡  (      180          ∘        −      60          ∘        )  =  −  sec  ⁡      60          ∘        =  −  2  cot  ⁡      120          ∘        =  cot  ⁡  (      180          ∘        −      60          ∘        )  =  −  cot  ⁡      60          ∘        =  −      1          3

How do you find the exact values of the six trig functions of angle 120?

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