we say that tan theta and cot theta are preodic function of pie
Asked by | 2nd Aug, 2011, 11:16: PM
Expert Answer:
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
and repeat itself after a period therefore they are periodic functions of which can also be seen by the graph of tan and cot. and cos are periodic functions of 2Answered by | 3rd Aug, 2011, 03:18: AM
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