Álgebra lineal Ejemplos

$[\begin{array}{c} - 6 & 7 \\ 2 & 6 \\ - 4 & 1 \end{array}]$

Paso 1

Multiply each element of $R_{1}$ by $- \frac{1}{6}$ to make the entry at $1, 1$ a $1$ .

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Paso 1.1

Multiply each element of $R_{1}$ by $- \frac{1}{6}$ to make the entry at $1, 1$ a $1$ .

$[\begin{array}{c} - \frac{1}{6} \cdot - 6 & - \frac{1}{6} \cdot 7 \\ 2 & 6 \\ - 4 & 1 \end{array}]$

Paso 1.2

Simplifica $R_{1}$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 2 & 6 \\ - 4 & 1 \end{array}]$

Paso 2

Perform the row operation $R_{2} = R_{2} - 2 R_{1}$ to make the entry at $2, 1$ a $0$ .

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Paso 2.1

Perform the row operation $R_{2} = R_{2} - 2 R_{1}$ to make the entry at $2, 1$ a $0$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 2 - 2 \cdot 1 & 6 - 2 (- \frac{7}{6}) \\ - 4 & 1 \end{array}]$

Paso 2.2

Simplifica $R_{2}$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 0 & \frac{25}{3} \\ - 4 & 1 \end{array}]$

Paso 3

Perform the row operation $R_{3} = R_{3} + 4 R_{1}$ to make the entry at $3, 1$ a $0$ .

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Paso 3.1

Perform the row operation $R_{3} = R_{3} + 4 R_{1}$ to make the entry at $3, 1$ a $0$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 0 & \frac{25}{3} \\ - 4 + 4 \cdot 1 & 1 + 4 (- \frac{7}{6}) \end{array}]$

Paso 3.2

Simplifica $R_{3}$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 0 & \frac{25}{3} \\ 0 & - \frac{11}{3} \end{array}]$

Paso 4

Multiply each element of $R_{2}$ by $\frac{3}{25}$ to make the entry at $2, 2$ a $1$ .

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Paso 4.1

Multiply each element of $R_{2}$ by $\frac{3}{25}$ to make the entry at $2, 2$ a $1$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ \frac{3}{25} \cdot 0 & \frac{3}{25} \cdot \frac{25}{3} \\ 0 & - \frac{11}{3} \end{array}]$

Paso 4.2

Simplifica $R_{2}$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 0 & 1 \\ 0 & - \frac{11}{3} \end{array}]$

Paso 5

Perform the row operation $R_{3} = R_{3} + \frac{11}{3} R_{2}$ to make the entry at $3, 2$ a $0$ .

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Paso 5.1

Perform the row operation $R_{3} = R_{3} + \frac{11}{3} R_{2}$ to make the entry at $3, 2$ a $0$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 0 & 1 \\ 0 + \frac{11}{3} \cdot 0 & - \frac{11}{3} + \frac{11}{3} \cdot 1 \end{array}]$

Paso 5.2

Simplifica $R_{3}$ .

$[\begin{array}{c} 1 & - \frac{7}{6} \\ 0 & 1 \\ 0 & 0 \end{array}]$

Paso 6

Perform the row operation $R_{1} = R_{1} + \frac{7}{6} R_{2}$ to make the entry at $1, 2$ a $0$ .

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Paso 6.1

Perform the row operation $R_{1} = R_{1} + \frac{7}{6} R_{2}$ to make the entry at $1, 2$ a $0$ .

$[\begin{array}{c} 1 + \frac{7}{6} \cdot 0 & - \frac{7}{6} + \frac{7}{6} \cdot 1 \\ 0 & 1 \\ 0 & 0 \end{array}]$

Paso 6.2

Simplifica $R_{1}$ .

$[\begin{array}{c} 1 & 0 \\ 0 & 1 \\ 0 & 0 \end{array}]$