Question: Two speakers, 2.50 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 0.900

Two speakers, 2.50 m apart, are driven by the same audio oscillator so that each one produces a sound consisting of two distinct frequencies, 0.900 kHz and 1.20 kHz. The speed of sound in the room is 344 m}s. Find all the angles relative to the usual center line in front of (and far from) the speakers at which both frequencies interfere constructively.

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