Sumários
The method of the adjoint and Cramer's Rule
24 Fevereiro 2021, 09:30 • Rita Sousa
We continued the theoretical content explaining the way to obtain the inverse of a matrix from the adjoint matrix and the determinant. Examples were worked out in class. We explained Cramer's rule and its link to solutions of linear systems, when we are interested in just a few of the variables, and not in all. We completed exercises in the PUC for this Week until exercise 9 (inclusive) during class.
Lesson n. 8
24 Fevereiro 2021, 08:00 • Rita Sousa
Determinant of a matrix: definition, notation and some properties.
Arrow technique for 3x3 matrices.
Invertible matrices and determinants. The adjoint matrix.
Exercises: 2, 3, 4, 10 and 11, PUC - Week 3
Aula TP8
23 Fevereiro 2021, 16:00 • Rita Sousa
Exercícios 10, 11 da PUC (semana 2).
Independência linear.
Exercício 1.1 da PUC (semana 2).
Aula TP8
23 Fevereiro 2021, 14:30 • Rita Sousa
Exercícios 10, 11 da PUC (semana 2).
Independência linear.
Exercício 1.1 da PUC (semana 2).