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Operações com Matrizes e Números Reais

Mathematics

11th Grade

Operações com Matrizes e Números Reais
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Considere a matriz A = \begin{bmatrix} 2 & 3 \\ 1 & 4 \end{bmatrix} e o número real k = 3. Qual é o resultado de k \cdot A?

\begin{bmatrix} 5 & 6 \\ 4 & 7 \end{bmatrix}

\begin{bmatrix} 6 & 9 \\ 3 & 12 \end{bmatrix}

\begin{bmatrix} 2 & 3 \\ 1 & 4 \end{bmatrix}

\begin{bmatrix} 8 & 9 \\ 7 & 10 \end{bmatrix}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dadas as matrizes A = \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix} e B = \begin{bmatrix} 4 & 3 \\ 2 & 1 \end{bmatrix}, qual é o resultado de A + B?

\begin{bmatrix} 5 & 5 \\ 5 & 5 \end{bmatrix}

\begin{bmatrix} 3 & 5 \\ 5 & 5 \end{bmatrix}

\begin{bmatrix} 5 & 5 \\ 5 & 5 \end{bmatrix}

\begin{bmatrix} 4 & 5 \\ 5 & 5 \end{bmatrix}

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Seja A = \begin{bmatrix} 7 & 2 \\ 5 & 3 \end{bmatrix} e B = \begin{bmatrix} 4 & 1 \\ 2 & 2 \end{bmatrix}. Calcule A - B.

\begin{bmatrix} 3 & 1 \\ 3 & 1 \end{bmatrix}

\begin{bmatrix} 11 & 3 \\ 7 & 5 \end{bmatrix}

\begin{bmatrix} 3 & 1 \\ 3 & 1 \end{bmatrix}

\begin{bmatrix} 2 & 1 \\ 1 & 1 \end{bmatrix}

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Multiplique o número real -2 pela matriz A = \begin{bmatrix} 0 & 4 \\ -3 & 5 \end{bmatrix}.

\begin{bmatrix} 0 & -8 \\ 6 & -10 \end{bmatrix}

\begin{bmatrix} 0 & 8 \\ -6 & 10 \end{bmatrix}

\begin{bmatrix} 0 & -4 \\ 3 & -5 \end{bmatrix}

\begin{bmatrix} 0 & 4 \\ -3 & 5 \end{bmatrix}

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dadas as matrizes A = \begin{bmatrix} 2 & 1 \\ 0 & 3 \end{bmatrix}, B = \begin{bmatrix} 1 & 2 \\ 3 & 0 \end{bmatrix} e C = \begin{bmatrix} 0 & 1 \\ 2 & 2 \end{bmatrix}, calcule A + B + C.

\begin{bmatrix} 3 & 4 \\ 5 & 5 \end{bmatrix}

\begin{bmatrix} 3 & 4 \\ 5 & 5 \end{bmatrix}

\begin{bmatrix} 3 & 4 \\ 5 & 5 \end{bmatrix}

\begin{bmatrix} 3 & 4 \\ 5 & 5 \end{bmatrix}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Seja A = \begin{bmatrix} 5 & 7 \\ 2 & 6 \end{bmatrix} e B = \begin{bmatrix} 3 & 2 \\ 1 & 4 \end{bmatrix}. Qual é o resultado de A - B?

\begin{bmatrix} 2 & 5 \\ 1 & 2 \end{bmatrix}

\begin{bmatrix} 8 & 9 \\ 3 & 10 \end{bmatrix}

\begin{bmatrix} 2 & 5 \\ 1 & 2 \end{bmatrix}

\begin{bmatrix} 2 & 5 \\ 1 & 2 \end{bmatrix}

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Multiplique o número real 0 pela matriz A = \begin{bmatrix} 8 & -2 \\ 5 & 7 \end{bmatrix}.

\begin{bmatrix} 0 & 0 \\ 0 & 0 \end{bmatrix}

\begin{bmatrix} 8 & -2 \\ 5 & 7 \end{bmatrix}

\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}

\begin{bmatrix} 0 & 1 \\ 1 & 0 \end{bmatrix}

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