Encontre os elemento da matriz A = (aij)2x2 , onde aij= 2i − j. O determinante dessa matriz é igual a
Avaliação - Eletiva Matemática Básica II - 1ª parte

Quiz
•
Mathematics
•
11th Grade
•
Medium
SIRLEIDE SILVA
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
- 1
- 5
2
6
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Dadas as matrizes A e B, o valor do determinante de 2A - B é
21
29
17
13
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Se essas matrizes são iguais, o valor de x+y é
5
3
-5
-8
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Os valores de a para que o det(X)=38
-2 e 2
-40 e 40
-4 e 4
-6 e 6
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Seja a matriz A3x3, onde aij= j2+i2 . A soma dos elementos da diagonal principal dessa matriz resulta em
28
6
15
12
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
O valor de x para que essa afirmação seja verdadeira é
-2
-6
4
18
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Seja a matriz A=[aij]3x3 cuja lei de formação está informada na imagem. O determinante dessa matriz vale
0
6
2
1
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