Correct Answer Explanation: How do you come up with the first step of the correct answer? I understnd the simplification from there.
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easier way: for the period is therefore for the period is
Last edited by pickslides; Aug 13th 2009 at 06:21 PM. Reason: bad latex
thanks, although how do you get the first step of the correct answer explanation I posted?
Originally Posted by Mike9182 Correct Answer Explanation: How do you come up with the first step of the correct answer? I understnd the simplification from there. In the first step you are using the fact that is periodic with period In general if fundamental period of is ,then fundamental period of of is , where, The fundamental period of is . Therefore,the fundamental period of is
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