engineering recuitment GATE EE 2023-24 Test Series Signals and Systems Fourier Series Properties of Fourier Series
Let f(t) be an even periodic signal with time period T and let y(t) be signal defined such that y(t) = f(t + T/4) then which of the following statement is true regarding Fourier series expansion of f(t) and y(t)
1
Fourier series expansion of both f(t) and y(t) will contain cos terms only
2
Fourier series expansion of both f(t) and y(t) will contain sin terms only
3
Fourier series expansion of f(t) will contain only cosine terms and that of y(t) will contain only sine terms
4
Fourier series expansion of f(t) will contain only sine terms and that of y(t) will contain only cosine terms