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(Solved): please explain first how to determine any fucntion is periodic or not (easy way )and than answer the ...



please explain first how to determine any fucntion is periodic or not (easy way )and than answer these questions thank you,Q1 (LO1) Determine whether the following signals are periodic. If they are periodic, find their fundamental period or

{:T_(0))

, and frequency

w_(0)(\Omega _(0))

and

f_(0)

. (a)

x[n]=5+cos((3\pi )/(4)n+(\pi )/(2))+cos((1)/(3)n)

(b)

x(t)=te^(j\pi t)+e^(j(4\pi )/(5)t)

(c)

x[n]=cos((\pi )/(5)n+(\pi )/(4))+sin((\pi )/(4)n)+u[n]+u[-n-1]


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