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Fundamental frequencies of square wave and sine wave
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[QUOTE="gneill, post: 4986486, member: 293536"] The question asks for the fundamental frequencies of the given waveforms, one a square wave and the other a sine wave. You should be able to get to the answers without any math at all :) The Fourier series represents a sum of frequency components, all of which are sinusoidal. In effect it breaks down a given periodic waveform into a series of sinusoidal frequency components. A pure sine wave has only one component frequency, namely that of the sine wave itself. So you should be able to dispose of the 25 KHz sinewave easily enough. The square wave can also be dealt with by inspection if you picture the largest sinewave that will fit its outline. [/QUOTE]
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Fundamental frequencies of square wave and sine wave
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