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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APA style
What Are Periodic Trigonometric Functions?. (2013, March 2). In ClassBrain Math Tutorials. Retrieved 15:38, March 25, 2017, from http://www.classbrainmath.com/periodic-trigonometric-functions/
MLA style
Cynthia Kirkeby, “What Are Periodic Trigonometric Functions?.” ClassBrain Math Tutorials. 2 March 2013, 11:19 UTC. . 25 Mar 2017 <http://www.classbrainmath.com/periodic-trigonometric-functions/>.
MHRA style
Cynthia Kirkeby, 'What Are Periodic Trigonometric Functions?', ClassBrain Math Tutorials, 2 March 2013, 11:19 UTC, <http://www.classbrainmath.com/periodic-trigonometric-functions/> [accessed 25 March 2017]
The Chicago Manual of Style
Cynthia Kirkeby, “What Are Periodic Trigonometric Functions?.” ClassBrain Math Tutorials, http://www.classbrainmath.com/periodic-trigonometric-functions/ [accessed March 25, 2017].
CBE/CSE style
Cynthia Kirkeby, What Are Periodic Trigonometric Functions? [Internet]. ClassBrain Math Tutorials; 2013 March 2, 11:19 UTC [cited 2017 Mar 25]. Available from: http://www.classbrainmath.com/periodic-trigonometric-functions/.
Bluebook style
What Are Periodic Trigonometric Functions?, http://www.classbrainmath.com/periodic-trigonometric-functions/ (last visited Mar. 25, 2017).
AMA style
Cynthia Kirkeby, What Are Periodic Trigonometric Functions?. ClassBrain Math Tutorials. March 2, 2013, 11:19 UTC. Available at: http://www.classbrainmath.com/periodic-trigonometric-functions/. Accessed March 25, 2017.