Answer Happy

[5 Points] Assume that ä(t) and y(t) are both continuous time aperiodic signals, and Fourier transform ä(t) is X(w). What is the Fourier transform of y(t) = e2wtx(t)? O a. Y(w) = X(w — 2wo) - O b. Y(w) = X(w + 4wo) O c. Y(w) = X(w) O d. Y(w) = X(w + 2wo)
[5 Points] Choose the correct statement about the following signal. x(t) = 2 + sin(6nt) + cos (9nt +) O a. Fundamental angular frequency is 67 O b. Aperiodic O c. Fundamental period is 1/3 O d. Second harmonic angular frequency is 67
[5 Points] The Fourier series coefficients of the continuous time signal ä(t), which is periodic with period T = 2, is given as a. What is the Fourier series coefficients of the signal y(t) O a. bk (j2wo) ak O b. b = 3a_k +2e¯jk5π O c. bk = a_k + 2e¯jk5π O d. bk = · 2x(−t/4) — 5x(t – 4)? = ak = 2a-k 5e-k² ak