engineering recuitment NIELIT Scientific Assistant Mock Test 2025 Signals and Systems Discrete Time Signals and Systems Operation on Signals
If the discrete time signals x1(n) = {2, 2, 1, 2} and x2(n) = { -2, -1, 3, 2}, then x1(n) + x2(n) = ?
1
{4, 3, -2, 0}
2
{2, 1, 2, 1}
3
{0, 1, -2, 0}
4
{0, 1, 4, 4}