Sumários

2 Outubro 2024, 10:00 • Alexandra Symeonides

Determinants ex 25 a)b) 27. 29. b)f) 30 a) 31 a)

Linear systems ex. 32 c) ex. 33 a)e)

2 Outubro 2024, 10:00 • Miguel Reis

- Resolution of exercises 23, 24-b), 25, 26, 27, 28, 28, 29-e), 30-b).

- Comment of exercise 31-c).

2 Outubro 2024, 08:30 • Alexandra Symeonides

Elementary operations and equivalent systems. Classification of SLEs (number of unknowns vs rank of the matrix of the system and the

augmented matrix). Resolution by Gauss elimination method. Cramer rule for square

Cramer SLEs.

30 Setembro 2024, 08:00 • Alexandra Symeonides

Recursive definition of the determinant by Laplace’s rule. Exercise 29 line (e). Determinant of the transpose

and of triangular matrices. Relation between determinant and invertibility. Determinant

of the product; the inverse and integer powers of a matrix. Systems of linear equations (SLEs): firsts definitions

26 Setembro 2024, 10:00 • Alexandra Symeonides

ex 17 b) 18 b) 20 21 d) 23 24 c)