
can someone help me solve this problem by using matlab?
3. For this problem, we consider a signal made of the sum of three simultaneously present sinusoids (t)n(2m fit) sin(2m fat) sin(2mfat) at frequencies of fi = 3 llz, f2 = 7 Hz, and fa = 11 Hz. (a) Plot the signal as a function of time. Label the axis as amplitude and time in seconds. You can pick a range that covers several periods of the
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