Question: Prove that the determinant of the system matrix in Eq. (6.31) is equal to 1. Dzdy -D1 D2 + a12 Did1 di 1 A22 a21

Prove that the determinant of the system matrix in Eq. (6.31) is equal to 1.

Dzdy -D1 – D2 + п п a12 Did1 пу di 1 A22 a21 пj (6.31)

Dzdy -D1 D2 + a12 Did1 di 1 A22 a21 j (6.31)

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