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Frequency Analysis of Signals and Systems on Digital Signal Processing related Questions and Answers


Question :   What is the causal inverse of the FIR system with impulse response h(n)=δ(n)-aδ(n-1)?
1. δ(n)-aδ(n-1)
2. δ(n)+aδ(n-1)
3. a -n
4. an
Answer :   4 - an  

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