Revision as of 12:20, 25 September 2008 by Pjcannon (Talk)

Guess the Periodic Signal

1. $ x(t)\! $ is real and odd
2. $ x(t)\! $ is periodic with period $ T=4\! $
3. $ a_0=3\! $
4. $ -3<=x<=3\! $

Solution

$ x(t)=3cos(\frac{\pi}{2}t)\! $

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Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

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