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Problems
Consider the discretized square plate in Figure 1.
Figure 1: Discretized Square Plate
Write a system of linear equations for this system and clearly identify the matrix A in the matrix equation Ax=b.
Compute the determinant of A.
Compute the classical adjoint matrix (i.e., the adjugate matrix) of A.
Using your answers from problems 2 and 3, solve for A-1 and x.
Use Cramerâs rule to check your answer by solving for just x1 and x4.
30 10 Figure 1: Discretized square Plate 40
Show transcribed image text 30 10 Figure 1: Discretized square Plate 40