1.24 For each of the following functions, indicate if its waveform exhibits even symmetry, odd symmetry, or neither. (a) x¹ (t) = u(t− 3) + uf-t− 3) (b) x2 (t) = sin(2t) cos (2 t) (c) x3 (1) = sin(t2)

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Frequency Modulation

Frequency modulation is a method or process of encoding the data of a specific signal (analog or digital) by modulating the carrier wave frequency according to the frequency of the modulated signal. Modulated signals are nothing more than information or data that should be conveyed after being converted into electronic signals.