Answer Happy

Please solve this question completely and in a (correct) way as soon as possible and in its entirety. An accurate solution, without explanation. I just want the mathematical solution (solid state physics) to give you a very good evaluation.
Question Four: (7 points) For a di-atomic crystal structure with two masses M, and M₂, interutomic distance between similar massos a and the elastic force constant between nearest neighbor atoms C, as in the figure below. Answer the following questions step by step: 0₁-1 U 1441 M₁ a) Write down the equation of motion of each atom. b) Write down the suitable wave form of the travelling waves , and v,, substitute the wave function of motion and simplify these equation to be ready for solving. c) What is the condition for solving these two equations:: Bak 2 .... .M₁. M2...+.. M2. W.² + 2 E- coska) قامت معاد / d) DD. F.S.M. BAZ UDVIN.