Question
Tue August 02, 2011 By:

we say that tan theta and cot theta are preodic function of pie

Expert Reply
Wed August 03, 2011
Periodic function is a function that repeats its value in regular intervals or periods and tan and
cot repeat itself after a period therefore they are periodic functions of which can also be seen by the graph of tan and cot.
similarly,sin and cos are periodic functions of 2
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