Boa noite.
Me ajuda, preciso entregar isso hoje.
Determine o valor de cada determinante:
a) ![\left[\begin{array}{ccc}3&2&5\\4&1&3\\2&3&4\end{array}\right] b) \left[\begin{array}{ccc}0&3&0\\-2&3&1\\4&-2&5\end{array}\right] c) \left[\begin{array}{ccc}2&2&0\\1&1&1\\4&3&0\end{array}\right]](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26amp%3B2%26amp%3B5%5C%5C4%26amp%3B1%26amp%3B3%5C%5C2%26amp%3B3%26amp%3B4%5Cend%7Barray%7D%5Cright%5D+%C2%A0b%29+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%26amp%3B3%26amp%3B0%5C%5C-2%26amp%3B3%26amp%3B1%5C%5C4%26amp%3B-2%26amp%3B5%5Cend%7Barray%7D%5Cright%5D+%C2%A0+%C2%A0%C2%A0c%29++++++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D2%26amp%3B2%26amp%3B0%5C%5C1%26amp%3B1%26amp%3B1%5C%5C4%26amp%3B3%26amp%3B0%5Cend%7Barray%7D%5Cright%5D+ "\left[\begin{array}{ccc}3&2&5\\4&1&3\\2&3&4\end{array}\right] b) \left[\begin{array}{ccc}0&3&0\\-2&3&1\\4&-2&5\end{array}\right] c) \left[\begin{array}{ccc}2&2&0\\1&1&1\\4&3&0\end{array}\right]")
ChakaLOficiaL:
OBS: Ignorem esses     <---
Soluções para a tarefa
Respondido por
5
(+ + +) -(10)-(27)-(32)= -69
\ \ \ / / /
a) 3 2 5 | 3 2
4 1 3 | 4 1 ==> DetA= 84-69==>DetA=15
2 3 4 | 2 3
/ / / \ \ \
( - - -) 12+12+60= 84
Resposta: DetA=15
-0 -0 -(-30)=30
B) 0 3 0 | 0 3
-2 3 1 | -2 3 ==> DetB= 30+12==> DetB= 42
4 -2 5 | 4 -2
0 + 12+0==>12
Resposta: DetB=42
-0 -6 -0==> -6
c) 2 2 0 | 2 2
1 1 1 | 1 1 ==> DetC= 8-6==> DetC=2
4 3 0 | 4 3
0 + 8+0==> 8
\ \ \ / / /
a) 3 2 5 | 3 2
4 1 3 | 4 1 ==> DetA= 84-69==>DetA=15
2 3 4 | 2 3
/ / / \ \ \
( - - -) 12+12+60= 84
Resposta: DetA=15
-0 -0 -(-30)=30
B) 0 3 0 | 0 3
-2 3 1 | -2 3 ==> DetB= 30+12==> DetB= 42
4 -2 5 | 4 -2
0 + 12+0==>12
Resposta: DetB=42
-0 -6 -0==> -6
c) 2 2 0 | 2 2
1 1 1 | 1 1 ==> DetC= 8-6==> DetC=2
4 3 0 | 4 3
0 + 8+0==> 8
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