Contents
Simplify this summation
$ \sum_{n=-\infty}^\infty n \delta [n] $
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Answer 1
The answer is 0 ?
- Instructor's comment: Yes, it's zero. Can you justify your answer? -pm
Answer 2
The delta function is zero everywhere except when n=0 and since we are multiplying the delta by n the answer would thus be 0.
Answer 3
write it here.