1. ## Trigonometry

Please help me with this question, really confused, need full procedure

Find the exact value of tan(-330)

Its answer is (sqrt 3)/2

2. Originally Posted by creatively12
Please help me with this question, really confused, need full procedure

Find the exact value of tan(-330)

Its answer is (sqrt 3)/2
$\displaystyle tan(a+b) = \frac{tan(a)+tan(b)}{1-tan(a)tan(b)}$

a = -360 and b = 30

Both of these are standard angles

3. but your answer comes as (sqrt 3)/3, but its actually (sqrt 3)/2 at the back of the book (confused)

4. but your answer comes as (sqrt 3)/3, but its actually (sqrt 3)/2 at the back of the book