engineering recuitment NIELIT Scientific Assistant Mock Test 2025 Signals and Systems Fourier Series Properties of Fourier Series
A signal x(t) = sin [10 πt] is applied to the system whose output is y(t) = sgn [x(t)]. Then y(t) contains _____ harmonics.
1
Both even & odd
2
only even
3
only odd
4
dc, even and odd