(New page: == Guess the Periodic Signal== 1. <math>x(t)\!</math> is real and odd<br> 2. <math>x(t)\!</math> is periodic with period <math>T=4\!</math><br> 3. <math>a_0=3\!</math><br> 4. <math>x(0...) |
(→Guess the Periodic Signal) |
||
| Line 3: | Line 3: | ||
2. <math>x(t)\!</math> is periodic with period <math>T=4\!</math><br> | 2. <math>x(t)\!</math> is periodic with period <math>T=4\!</math><br> | ||
3. <math>a_0=3\!</math><br> | 3. <math>a_0=3\!</math><br> | ||
| − | 4. <math>x | + | 4. <math>-3<=x<=3\!</math> |
| − | + | ||
== Solution == | == Solution == | ||
<math>x(t)=3cos(\frac{\pi}{2}t)\!</math> | <math>x(t)=3cos(\frac{\pi}{2}t)\!</math> | ||
Revision as of 11:19, 25 September 2008
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)\! $
