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PROBLEM: A signal x(t)-A cos (2nfit + ф) įs shown in the figure bclow. x (t) 3 1.5 0.03 0.07 t (seconds) The spcctrum of x(t)

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Answer #1

From the given input signal we can find the time period 't'

t=0.07-0.03=0.04

Now the frequency =1/t

f=1/(0.04)=25hz

X0=1.5

X1=1.5

X-1=1.5

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