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Z transform and its Application on Digital Signal Processing related Questions and Answers


Question :   What is the z-transform of the signal x(n)=[3(2n)-4(3n)]u(n)?
1. 3/(1-2z-1)-4/(1-3z-1)
2. 3/(1+2z-1)-4/(1+3z-1)
3. 3/(1-2z)-4/(1-3z)
4. None of the mentioned
Answer :   1 - 3/(1-2z-1)-4/(1-3z-1)  

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