
Matrizes e Sistemas Lineares
Mathematics
10th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere o sistema linear: \[ \begin{cases} 2x + 3y = 5 \\ x - y = 1 \end{cases} \] Qual é a matriz dos coeficientes associada a esse sistema?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual das alternativas representa a matriz aumentada do sistema: \[ \begin{cases} x + y = 2 \\ 2x - y = 1 \end{cases} \]
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual das seguintes operações NÃO é permitida em uma matriz?
Trocar duas linhas
Multiplicar uma linha por zero
Somar um múltiplo de uma linha a outra
Multiplicar uma linha por um número diferente de zero
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere o sistema linear: \[ \begin{cases} x + y + z = 6 \\ 2x - y + 3z = 14 \\ -x + 4y - z = -2 \end{cases} \] Qual é a matriz dos coeficientes desse sistema?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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