Question

assinale a alternativa que corresponde a determinante da matriz abaixo

Answer 1

Resposta:

A=

⎝

⎛

17

18

48

6

5

8

12

23

5

⎠

⎞

\mathtt{det~A=17.(25-184)-6(90-1104)+12.(144-240)}det A=17.(25−184)−6(90−1104)+12.(144−240)

\mathtt{det~A=-2703+6084-1152=2229}det A=−2703+6084−1152=2229

\huge\boxed{\boxed{\mathtt{det~A=2229}}}

det A=2229