Question 1: (6 marks) azu au au au it azz + ayy ay² อัน au az2 + 2axy + 2ayz ayaz + 2axx + bx azax by ди дz Consider the

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Question 1: (6 marks) azu au au au it azz + ayy ay² อัน au az2 + 2axy + 2ayz ayaz + 2axx + bx azax by ди дz Consider the following second order PDE in three independent variables in the form: อน дхду yo+ba + cu = 0 Where Axx, Ayy, Azz, Qxy , Qyz, Azx, bx , by, b, and c are constants or some functions x, y, z and u. sx Classify the given PDE by using the appropriate method to determine whether it is an Elliptic, parabolic or hyperbolic PDE? ->Eigenvalue met