Álgebra linear Exemplos

$m^{- 1} [\begin{array}{c} 1 & 1 & 0 \\ - 1 & 1 & 1 \\ 0 & 3 & 1 \end{array}]$

Etapa 1

Reescreva a expressão usando a regra do expoente negativo $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{m} [\begin{array}{c} 1 & 1 & 0 \\ - 1 & 1 & 1 \\ 0 & 3 & 1 \end{array}]$

Etapa 2

Multiplique $\frac{1}{m}$ por cada elemento da matriz.

$[\begin{array}{c} \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 0 \\ \frac{1}{m} \cdot - 1 & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3

Simplifique cada elemento da matriz.

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Etapa 3.1

Multiplique $\frac{1}{m}$ por $1$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 0 \\ \frac{1}{m} \cdot - 1 & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.2

Multiplique $\frac{1}{m}$ por $1$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & \frac{1}{m} \cdot 0 \\ \frac{1}{m} \cdot - 1 & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.3

Multiplique $\frac{1}{m}$ por $0$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ \frac{1}{m} \cdot - 1 & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.4

Combine $\frac{1}{m}$ e $- 1$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ \frac{- 1}{m} & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.5

Mova o número negativo para a frente da fração.

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ - \frac{1}{m} & \frac{1}{m} \cdot 1 & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.6

Multiplique $\frac{1}{m}$ por $1$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ - \frac{1}{m} & \frac{1}{m} & \frac{1}{m} \cdot 1 \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.7

Multiplique $\frac{1}{m}$ por $1$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ - \frac{1}{m} & \frac{1}{m} & \frac{1}{m} \\ \frac{1}{m} \cdot 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.8

Multiplique $\frac{1}{m}$ por $0$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ - \frac{1}{m} & \frac{1}{m} & \frac{1}{m} \\ 0 & \frac{1}{m} \cdot 3 & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.9

Combine $\frac{1}{m}$ e $3$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ - \frac{1}{m} & \frac{1}{m} & \frac{1}{m} \\ 0 & \frac{3}{m} & \frac{1}{m} \cdot 1 \end{array}]$

Etapa 3.10

Multiplique $\frac{1}{m}$ por $1$ .

$[\begin{array}{c} \frac{1}{m} & \frac{1}{m} & 0 \\ - \frac{1}{m} & \frac{1}{m} & \frac{1}{m} \\ 0 & \frac{3}{m} & \frac{1}{m} \end{array}]$