M1 lec2d|Periodic and Non-periodic Signals, Problem solving section

Описание к видео M1 lec2d|Periodic and Non-periodic Signals, Problem solving section

Problem-solving section………..
Determine whether or not each of the following signals is periodic. If a signal is periodic, determine its fundamental period.
► x(t)=cos⁡〖 (t+π/4)〗
► x(t)=sin⁡〖 (2π/3 t)〗
► x(t)=cos⁡〖 (π/3 t)+sin⁡〖 (π/4 t)〗 〗
► x(t)=cos⁡〖 (t)+sin⁡〖 (√2t)〗 〗
► x(t)=〖sin〗^2⁡〖 (t)〗
► x(t)=e^(j[(π∕〖2)t−1]〗)⁡
► x[n]=〖cos (1/4 n)〗⁡
► x[n]=〖cos (π/3 n)〗⁡ +sin (π/4 n)

Note:-Third Question
x(t)=cos⁡〖 (π/3 t)+sin⁡〖 (π/4 t)〗 〗
Calculation mistake
T1= 6 sec

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