Question

1) calcule o determinante das matrizes a seguir
a)
2
4
0
1
b)
4 1
7 O
3 0
5 -2​

Answer 1

Explicação passo-a-passo:

a)

$\begin{pmatrix} 2&4\\ 0&1\\ \end{pmatrix} = 2 \times 1 - 4 \times 0 = \pink{\boxed{ \bf{2}}}$

b)

$\begin{pmatrix} 4&1\\ 7&0\\\end{pmatrix} = 7 \times 0 - 1 \times 7 = \pink{\boxed{ \bf{ - 7}}}$

c)

$\begin{pmatrix} 3&0\\ 5& - 2\\ \end{pmatrix} = 3 \times ( - 2) - 0 \times 5 = \pink{\boxed{ \bf{ - 6}}}$