1. Consider the square-law modulator with m(t) Vin Nonlinear Vout y(t) + BPF device cos(2nfet) Vout = Vin - 2v Assuming the spectrum of m(t) and m2(t) are respectively given as %3D follows: MS) M) M) -W W -2W 2W f sketch the spectrum of vout and show that with a proper selection of the BPF, y(t), is a DSB-SC signal