(→Guess the Signal) |
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3. <math>a_3=a_5</math>. | 3. <math>a_3=a_5</math>. | ||
| − | 4. All <math>a_k=0 | + | 4. All <math>a_k=0, k\neq{3,5}</math>. |
==So What Is x[n]?== | ==So What Is x[n]?== | ||
Revision as of 08:26, 25 September 2008
Guess the Signal
1. $ x[n] $ is periodic with N=8.
2. $ \sum_{n=2}^{9}(-1)^{\frac{3}{4}}x[n]=4 $.
3. $ a_3=a_5 $.
4. All $ a_k=0, k\neq{3,5} $.
