[6/10][tex] \: \: [/tex]Jika:[tex]\rm \: A = \begin{bmatrix}1&2 \\ 3&4 \end{bmatrix}[/tex][tex]\rm \.... Question from @ErichelFr

July 2022 2 31 Report

[6/10]
[tex] \: \: [/tex]
Jika:

[tex]\rm \: A = \begin{bmatrix}1&2 \\ 3&4 \end{bmatrix}[/tex]
[tex]\rm \: B = \begin{bmatrix}1&2 \\ 1&2 \end{bmatrix}[/tex]

Maka:

AB = ...

JavierSKho13

cara pada lampiran foto

semoga bener ^^

1 votes Thanks 1

Zdytx

Jawaban:

$\rm AB = \begin{bmatrix}3&6 \\ 7&14 \end{bmatrix}$

Penjelasan dengan langkah-langkah:

$\rm \: A = \begin{bmatrix}1&2 \\ 3&4 \end{bmatrix}$

$\rm \: B = \begin{bmatrix}1&2 \\ 1&2 \end{bmatrix}$

AB = A × B

$= \begin{bmatrix}1&2 \\ 3&4 \end{bmatrix} \times \begin{bmatrix}1&2 \\ 1&2 \end{bmatrix}$

$= \begin{bmatrix}1.1 + 2.1&1. 2+ 2.2 \\ 3.1 + 4.1&3. 2+ 4.2 \end{bmatrix}$

$= \begin{bmatrix}1 + 2&2+ 4 \\ 3 + 4&6+ 8 \end{bmatrix}$

$= \begin{bmatrix}3&6 \\ 7&14 \end{bmatrix}$

3 votes Thanks 3

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