In amplitude modulation, sinusoidal carrier frequency used is denoted by ωcωc and the signal frequency is denoted by ωmωm The bandwidth (Δωm)(Δωm) of the signal is such that Δωm<<ωcΔωm<<ωc . Which of the following frequencies is not contained in the modulated wave ?
(1)ωm(2)ωc(3)ωm+ωc(4)ωc−ωm
