Answer
-$\sqrt 3$/3
Work Step by Step
tan330°=tan(2*180°-30°)=sin(360°-30°)/cos(360°-30°)=-sin30°/cos30°=-1/$\sqrt 3$=-$\sqrt 3$/3
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 6 - Section 6.3 - Trigonometric Functions of Angles - 6.3 Exercises - Page 499: 15
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