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