railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Discrete Time Signals and Systems
The Values of:
i) \(\mathop \sum \limits_{n = 0}^\infty \delta \left( {n + 1} \right){e^{ - 2n}}\)
ii) u(n) – u(n - 1)
1
Zero and δ(n)
2
Infinity and δ(-n)
3
e-2 and δ(-n - 1)
4
e2 and δ(n)