Solving a problem in physics, section 51, point 54 wave

Solving a problem in physics, section 51, point 54 wave

54. Two speakers positioned 2m from each other and reproduce the same musical tone at 1000 Hz. The receiver is located at a distance of 4 m from the center speaker. Considering the speed of sound is 340 m / s, determine how far from the center line parallel to the dynamics necessary to push the receiver, so he gave the first interference minimum.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)