Math Problem Statement
1. Trouvez l’inverse de la matrice suivante : 27 -11 35 -14 -11 29 -17 49 35 -17 93 -35 -14 49 -39 99 2. Déterminez par un exemple mathématique, la particularité d’une matrice symétrique 3. Trouvez en utilisant une ligne ou une colonne le déterminant de la matrice suivante et commentez votre résultat
Solution
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Math Problem Analysis
Mathematical Concepts
Linear Algebra
Matrix Inversion
Determinants
Symmetric Matrices
Formulas
Inverse of a Matrix: A^(-1) = adj(A) / det(A)
Determinant of a Matrix: det(A) = a(ei − fh) − b(di − fg) + c(dh − eg)
Symmetry: A matrix is symmetric if A = A^T
Theorems
Matrix Invertibility Theorem: A matrix is invertible if its determinant is non-zero
Properties of Symmetric Matrices: A symmetric matrix is equal to its transpose
Suitable Grade Level
University Level (Undergraduate)
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