Left Speaker Frequency Right Speaker Beat Frequency (Hz) (Hz) Frequency (Hz) Number of Beats in 10 Seconds FL fR 440 437 30 440 438 20 No 440 439 10 440 440 0 O 440 441 10 440 442 20 N 440 443 30 200 198 20 N 200 199 10 200 199.5 5 0.5 200 199.9 1 0.10 200 200 0 0 200 200.1 1 0.10 200 200.5 5 0.5 200 201 10 1 200 202 20 2 202 200 20 2 With the data you found in the previous table, try to create a mathematical formula that relates fu, fr, and fs. There is no need to show any derivation, just state the final equation. Hint: The beat frequency should be non-negative