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?


This video is courtesy of M4thG33x (YouTube)

Citation styles

APA style
What Are Periodic Trigonometric Functions?. (2013, March 2). In ClassBrain Math Tutorials. Retrieved 06:43, July 22, 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. . 22 Jul 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 22 July 2017]
The Chicago Manual of Style
Cynthia Kirkeby, “What Are Periodic Trigonometric Functions?.” ClassBrain Math Tutorials, http://www.classbrainmath.com/periodic-trigonometric-functions/ [accessed July 22, 2017].
CBE/CSE style
Cynthia Kirkeby, What Are Periodic Trigonometric Functions? [Internet]. ClassBrain Math Tutorials; 2013 March 2, 11:19 UTC [cited 2017 Jul 22]. 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 Jul. 22, 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 July 22, 2017.