1. The problem statement, all variables and given/known data Two speakers are 2m apart. You stand 5m back from the centre of the two speakers, and 2m to the side. The speakers are emitting sound at 700Hz, take the speed of sound to be 341 m/s. Are the waves in constructive or destructive super position? 2. Relevant equations 3. The attempt at a solution I'm really stuck on this question. I'm not even sure of any relevant equations that I can use. I think I'm √29m from the centre; √26m from one speaker and 6m from the other. If that helps at all. Thank you for any help in advance.