Решение задачи по физике раздел 12 пункт 17 волны

17. Add two harmonic vibrations in one direction described by the equations x1 = 3cos2πt, see and x2 = 3cos (2πt + π / 4), see. Determine for the resulting oscillation: 1) amplitude; 2) The initial phase. Write down the equation of the resulting fluctuations.

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