''A cosine curve is graphed similarly to a sine curve, but is out of phase with it. In particular, a sine wave crosses the center line at each interval of pi (Ï?), whereas a cosine wave peaks at intervals of Ï? and crosses the center line at intervals of ½Ï? (which are the points where sine waves peak).''https://www.investopedia.com/terms/s/sinewave.asp
Formula:
ClearTitle: signal spectra with a cosine of 5mV and 2kHz
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