Concours INP-HB CPGE Practice Questions - Concours D'Entrée Aux Classes Préparatoires Aux Grandes Écoles (CPGE) - INP-HB Yamoussoukro Exam

A is not diagonalizable because the geometric multiplicity of eigenvalue 2 is strictly less than its algebraic multiplicity. A is diagonalizable because it has three distinct eigenvalues. A is diagonalizable because its minimal polynomial has simple roots. A is invertible and therefore must be diagonalizable.