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Image text transcribed for accessibility: In many communicaton systems a device called mixer is used. In its simplest form a mixer is simply anolog multiplier. That its output signal y(t) is the product of its two input signals. If the two input signals are x1(t) = 10sinc(20t) and x2(t) = 5cos(2000 pi t) Graph the magnitude of the CTFT of y(t) , which Y(f) is, and compare it to the magnitude of the CTFT of x1(t) . In simple terms what does a mixer do/