The discussion focuses on calculating the beat frequency of three given frequencies: 200 Hz, 206 Hz, and 209 Hz. The beat frequency (Fb) is determined using the formula Fb = abs(F1 - F2). To find the overall beat frequency, one must consider the absolute differences between each pair of frequencies, specifically the combinations of (200 Hz, 206 Hz), (200 Hz, 209 Hz), and (206 Hz, 209 Hz). The calculated beat frequencies are 6 Hz and 3 Hz, leading to a comprehensive understanding of the beat phenomenon in sound waves.
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