
Matrizes Introdução
Authored by Julio Santos
Mathematics
11th Grade
Used 149+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere a lei de formação de uma matriz 2x3: aij = 2.i - j. Qual o valor de a22?
2
1
4
0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma matriz nula é aquela que:
Todos os seus elementos são zeros
ela é igual a zero
um dos elementos é zero
a diagonal principal é zero
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma outra interpretação para uma matriz é:
ela é uma maneria de escrever uma tabela e fazer operações com ela.
é lista de valor matemáticos arbitrários.
é relação entre dois conjuntos.
é a expansão do conjunto dos números reais.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A transposta da matriz: A = (3 4 -1) é:
3
4
-1
-1 4 3
-1
4
3
-3 -4 1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
É uma matriz identidade:
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se A e B são matrizes 2 x 3, é verdade que a matriz A + B é:
2 x 3
2 x 2
3 x 2
não é possível fazer A + B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dada a matriz acima , o elemento que ocupa a terceira linha e segunda coluna é:
1
-4/5
-7
-2
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