Quiz_Matrizes_Determinantes

Question 1

Question

Relativamente à matriz A:

Image:

ce6d0130-f379-4275-9e8d-c7cb2c5af809 (image/png)

Answer

det(A) = 7
det(A) = -7
det(A) = -13

Question 2

Question

Relativamente à matriz B:

Image:

58f7f623-a6a1-4d8d-97f2-da8369a9b04d (image/png)

Answer

det(B) = -4
det(B) = 0
det(B) = 4

Question 3

Question

Relativamente à matriz H:

Image:

1381ae1c-2e29-4259-bb13-54d58566f5e9 (image/png)

Answer

det(H) = -2
det(H) = 2
det(H) = 0

Question 4

Question

Relativamente à matriz K:

Image:

63589f78-ed46-4e52-b16c-75abcdef47da (image/png)

Answer

det(K) = 9
det(K) = 15
det(K) = 0

Question 5

Question

Relativamente à matriz F:

Image:

04e0d4e1-14ec-48c0-9a81-41099bda443a (image/png)

Answer

det(F) = 12
det(F) = 0
det(F) não existe

Question 6

Question

A Regra de Sarrus só se aplica a determinantes de ordem 3.

Answer

True
False

Question 7

Question

O determinante de uma matriz é sempre um número inteiro positivo.

Answer

True
False

Question 8

Question

Das seguintes relações, qual delas é VERDADEIRA?

Answer

det(AB) = det(A) det(B)
det(AB) = det(A) + det(B)
det(AB) = - det(A) det(B)

Question 9

Question

Relativamente à matriz D:

Image:

eb73f437-01fa-415e-bf9d-7b2ce4995881 (image/png)

Answer

det(D) = -20
det(D) = 0
det(D) não existe

Question 10

Question

Qual das seguintes afirmações é verdadeira?

Image:

1e73e48d-db5e-4c01-bdad-41e2db808b3c (image/png)

Answer

det(A') = det(A)
det(A') = -det(A)
det(A') = 2 det(A)

Question 11

Question

Qual das seguintes afirmações e verdadeira?

Image:

74d8c9c4-c1cd-463c-a688-9d93784772e4 (image/png)

Answer

det(A) = det(A')
det(A) = -det(A')
det(A) = det(A') + 1

Question 12

Question

Relativamente à matriz M:

Image:

5d9d87c7-ed75-4397-a0f0-e13255cd093f (image/png)

Answer

det(M) = -5
det(M) = -11
det(M) = 5

Question 13

Question

Relativamente à matriz J:

Image:

4f6eb2d8-c84d-492e-8200-af9345020ca9 (image/png)

Answer

det(J) = a+b+c
det(J) = abc
det(J) = 0

Question 14

Question

O determinante da matriz E é nulo.

Image:

bd8bfced-2ce9-4436-8548-9a1ebda32096 (image/png)

Answer

True
False

Question 15

Question

Sejam A e B duas matrizes de ordem 4. Se det(A) = 4 e det(AB) = -32, então:

Answer

det(B) = -8
det(B) = 28
det(B) = -28

Next up

Quiz_Matrizes_Determinantes

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Resource summary

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14

Question 15

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	Created by Sidonie Costa over 9 years ago