Good day - I would appreciate some direction. I have done the problem a few different ways and end up with different answers each time - which seems to be reasonable answers to all. Two speakers are 3.2 m apart and facing the same directions are in phase. They each produce 214 Hz tone. What is the shortest distance directly in front of one speaker where there would be destructive interference?. Take sof sound 343 m/s. Am i right to treat m =0 seeing it is in phase? Thank you very much for your time.