M1 Lec2e|Periodic and non periodic signals, Problem Solving Section

Topics .………

Problem-solving section………..
Determine whether or not each of the following signals is periodic. If a signal is periodic,
determine its fundamental period.
► x[n]=〖cos (3π/8 n)〗⁡
► x[n]=〖cos (nπ/2)〗⁡ cos (πn/4)
► x[n]=〖cos (π/4 n)〗⁡ +sin (π/8 n)−2cos (π/2 n)
► x(t)=cos⁡t.u(t)
► x(t)=v(t)+v(−t)
Where v(t)=cos⁡t.u(t)
and
Where v(t)=sin⁡t.u(t)

Видео M1 Lec2e|Periodic and non periodic signals, Problem Solving Section канала AKAS .G KAMAL