#### sky_tm

##### Junior Member level 1

(2What are periodic signals? How to determine if the equation is a periodic signal?

Find the fundamental period:

i) x[n] = sin(2n)

ii) x(t) = cos³(4t)

iii) \[x(t) = 1 + \sin^2(2 \pi t)\]

Find the fundamental period:

i) x[n] = sin(2n)

ii) x(t) = cos³(4t)

iii) \[x(t) = 1 + \sin^2(2 \pi t)\]

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