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Periodic Functions: Sine and cosine are periodic functions, which means that sine and cosine graphs repeat themselves in patterns. You can graph sine and cosine functions by understanding their period and amplitude.
What Are Periodic Trigonometric Functions?
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Citation styles
APA style
What Are Periodic Trigonometric Functions?. (2010, October 18). In ClassBrain Math . Retrieved 00:40, February 8, 2012, from http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/
MLA style
Cynthia Kirkeby, “What Are Periodic Trigonometric Functions?.” ClassBrain Math . 18 October 2010, 06:42 UTC. . 8 Feb 2012 <http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/ >.
MHRA style
Cynthia Kirkeby, 'What Are Periodic Trigonometric Functions?', ClassBrain Math , 18 October 2010, 06:42 UTC, <http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/ > [accessed 8 February 2012]
The Chicago Manual of Style
Cynthia Kirkeby, “What Are Periodic Trigonometric Functions?.” ClassBrain Math , http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/ [accessed February 8, 2012].
CBE/CSE style
Cynthia Kirkeby, What Are Periodic Trigonometric Functions? [Internet]. ClassBrain Math; 2010 October 18, 06:42 UTC [cited 2012 Feb 8]. Available from: http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/ .
Bluebook style
What Are Periodic Trigonometric Functions?, http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/ (last visited Feb. 8, 2012).
AMA style
Cynthia Kirkeby, What Are Periodic Trigonometric Functions?. ClassBrain Math. October 18, 2010, 06:42 UTC. Available at: http://www.classbrainmath.com/2010/03/periodic-trigonometric-functions/ . Accessed February 8, 2012.