The modulating signal m(t) = 2 cos 4000πt + 4 cos 6000πt is multiplied by the carrier c(t) = 100 cos 2πfct, where fc = 50 kHz. Determine and sketch the spectrum of the DSB signal.

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The atoms and molecules in it are in constant motion. The kinetic energy of such a body is the measure of its temperature. Potential energy is classified depending on the applicable restoring force. Gravitational potential energy – potential energy of an object which is associated with gravitational force