Math Problem Statement
Considere a matriz A3x3 tal que seus elementos aj , são definidos por:
aij = 2i + j se i > j
aij = 2j - i se i < j
aij = 2i + 2j se i=j
Calcule o determinante dessa matriz.
Solution
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Math Problem Analysis
Mathematical Concepts
Matrices
Determinants
Linear Algebra
Formulas
a_ij = 2i + j if i > j
a_ij = 2j - i if i < j
a_ij = 2i + 2j if i = j
Determinant of a 3x3 matrix using Sarrus' rule
Theorems
Sarrus' Rule for calculating determinants of 3x3 matrices
Suitable Grade Level
Grades 10-12