Aljabar Linear Contoh

$[\begin{array}{c} 2 & 2 & k \end{array}] \cdot ([\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 1

Tulis kembali menggunakan sifat komutatif dari perkalian.

$1 [\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 2

Kalikan $1$ dengan setiap elemen di dalam matriks tersebut.

$[\begin{array}{c} 1 \cdot 1 & 1 \cdot 1 & 1 \cdot 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3

Sederhanakan setiap elemen dalam matriks.

Ketuk untuk lebih banyak langkah...

Langkah 3.1

Kalikan $1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 \cdot 1 & 1 \cdot 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.2

Kalikan $1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 1 \cdot 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.3

Kalikan $0$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.4

Kalikan $1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.5

Kalikan $0$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.6

Kalikan $2$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.7

Kalikan $0$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.8

Kalikan $2$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & 1 \cdot - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 3.9

Kalikan $- 1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] \cdot 1 [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 4

Pindahkan $1$ ke sebelah kiri $[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}]$ .

$1 \cdot [\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 5

Kalikan $1$ dengan setiap elemen di dalam matriks tersebut.

$[\begin{array}{c} 1 \cdot 1 & 1 \cdot 1 & 1 \cdot 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6

Sederhanakan setiap elemen dalam matriks.

Ketuk untuk lebih banyak langkah...

Langkah 6.1

Kalikan $1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 \cdot 1 & 1 \cdot 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.2

Kalikan $1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 1 \cdot 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.3

Kalikan $0$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 \cdot 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.4

Kalikan $1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 1 \cdot 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.5

Kalikan $0$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 1 \cdot 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.6

Kalikan $2$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 1 \cdot 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.7

Kalikan $0$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 1 \cdot 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.8

Kalikan $2$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & 1 \cdot - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 6.9

Kalikan $- 1$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] (1 [\begin{array}{c} 2 \\ 2 \\ k \end{array}])$

Langkah 7

Kalikan $1$ dengan setiap elemen di dalam matriks tersebut.

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] [\begin{array}{c} 1 \cdot 2 \\ 1 \cdot 2 \\ 1 k \end{array}]$

Langkah 8

Sederhanakan setiap elemen dalam matriks.

Ketuk untuk lebih banyak langkah...

Langkah 8.1

Kalikan $2$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] [\begin{array}{c} 2 \\ 1 \cdot 2 \\ 1 k \end{array}]$

Langkah 8.2

Kalikan $2$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] [\begin{array}{c} 2 \\ 2 \\ 1 k \end{array}]$

Langkah 8.3

Kalikan $k$ dengan $1$ .

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] [\begin{array}{c} 2 \\ 2 \\ k \end{array}]$

Langkah 9

Kalikan $[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 & 2 & k \end{array}] [\begin{array}{c} 2 \\ 2 \\ k \end{array}]$ .

Ketuk untuk lebih banyak langkah...

Langkah 9.1

Two matrices can be multiplied if and only if the number of columns in the first matrix is equal to the number of rows in the second matrix. In this case, the first matrix is $3 \times 1$ and the second matrix is $1 \times 3$ .

Langkah 9.2

Kalikan setiap baris pada matriks pertama dengan setiap kolom pada matriks kedua.

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 2 \cdot 2 & 2 \cdot 2 & 2 k \\ 2 \cdot 2 & 2 \cdot 2 & 2 k \\ k \cdot 2 & k \cdot 2 & k \cdot k \end{array}]$

Langkah 9.3

Sederhanakan setiap elemen dalam matriks dengan mengalikan semua pernyataannya.

$[\begin{array}{c} 1 & 1 & 0 \\ 1 & 0 & 2 \\ 0 & 2 & - 1 \end{array}] [\begin{array}{c} 4 & 4 & 2 k \\ 4 & 4 & 2 k \\ 2 k & 2 k & k^{2} \end{array}]$

Langkah 9.4

Two matrices can be multiplied if and only if the number of columns in the first matrix is equal to the number of rows in the second matrix. In this case, the first matrix is $3 \times 3$ and the second matrix is $3 \times 3$ .

Langkah 9.5

Kalikan setiap baris pada matriks pertama dengan setiap kolom pada matriks kedua.

$[\begin{array}{c} 1 \cdot 4 + 1 \cdot 4 + 0 (2 k) & 1 \cdot 4 + 1 \cdot 4 + 0 (2 k) & 1 (2 k) + 1 (2 k) + 0 k^{2} \\ 1 \cdot 4 + 0 \cdot 4 + 2 (2 k) & 1 \cdot 4 + 0 \cdot 4 + 2 (2 k) & 1 (2 k) + 0 (2 k) + 2 k^{2} \\ 0 \cdot 4 + 2 \cdot 4 - (2 k) & 0 \cdot 4 + 2 \cdot 4 - (2 k) & 0 (2 k) + 2 (2 k) - k^{2} \end{array}]$

Langkah 9.6

Sederhanakan setiap elemen dalam matriks dengan mengalikan semua pernyataannya.

$[\begin{array}{c} 8 & 8 & 4 k \\ 4 + 4 k & 4 + 4 k & 2 k + 2 k^{2} \\ 8 - 2 k & 8 - 2 k & 4 k - k^{2} \end{array}]$