
Matrizes Lei de Formação
Authored by Lucio Vasconcelos dos Santos
Mathematics
10th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado da adição das matrizes [[1, 2], [3, 4]] e [[-1, 0], [2, 1]]?
[[-1, 0], [2, 1]]
[[1, 2], [3, 4]]
[[0, 1], [2, 3]]
[[0, 2], [5, 5]]
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calcule o produto das matrizes [[2, 3], [1, 4]] e [[5, 2], [3, 6]].
[[15, 12], [8, 24]]
[[10, 6], [3, 24]]
[[19, 18], [17, 26]]
[[7, 8], [9, 12]]
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Encontre a inversa da matriz [[2, 1], [3, 4]].
[[5, 6], [7, 8]]
[[4/5, -1/5], [-3/5, 2/5]]
[[0, 1], [1, 0]]
[[1, 2], [3, 4]]
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Transponha a matriz [[1, 2, 3], [4, 5, 6], [7, 8, 9]].
[[1, 3, 2], [4, 6, 5], [7, 9, 8]]
[[1, 2, 3], [4, 5, 6], [7, 8, 9]]
[[9, 8, 7], [6, 5, 4], [3, 2, 1]]
[[1, 4, 7], [2, 5, 8], [3, 6, 9]]
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Realize a operação de linha R2 -> R2 + 2R1 na matriz [[1, 2], [3, 4]].
[[1, 2], [11, 14]]
[[1, 2], [5, 6]]
[[1, 2], [7, 10]]
[[1, 2], [9, 12]]
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o resultado da multiplicação das matrizes [[-1, 3], [2, 0]] e [[4, 1], [2, -2]]?
[[2, -7], [8, 2]]
[[3, -7], [6, 2]]
[[1, 4], [2, -2]]
[[-2, 3], [8, 0]]
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine a inversa da matriz [[5, 1], [2, 3]].
[[4/13, -1/13], [-2/13, 5/13]]
[[2/5, -1/5], [-2/5, 4/5]]
[[1/5, -1/5], [-2/5, 3/5]]
[[3/13, -1/13], [-2/13, 5/13]]
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