1. nAn u(n-1)
2. nAn u(n+1)
3. (n-1)A(n-1) u(n)
4. nAn u(n)
nAn u(n)
1. | z | > 0
2. | z | ≥ ±1
3. | z | = 1
4. | z | = 1/z-1k
| z | = 1
1. 1/1+α
2. 1/1+α2
3. 1/1 - α
4. 1/α
5. Rs. 15
6. Rs. 16
7. Rs. 20
8. Rs. 24
9. Rs. 30
Rs. 16
1. 0
2. 2
3. -1
4. 1
1
1. X(n)
2. x(n)
3. z = 0
4. X(z)
X(z)
1.
2.
3.
4.
1. k = 0
2. k ≥ 0
3. k < 0
4. k ≤ 0
k < 0
1. 1
2. 2
3. 3
4. 4
2
1. greater than 1
2. smaller than 1
3. greater than equal to 1
4. equal to zero
smaller than 1