# Pengantar Matriks

## MIA Kelas 12 (Quipper Assessment Desember 2015) / MIA Kelas 12 (Quipper Assessment Desember 2015)

#### Contoh Soal

Diketahui sistem persamaan linear tiga variabel (SPLTV)

[% \begin{cases} 2x-y+3z=4\\ -x+2y-z=1\\ 3x+y=5 \end{cases} %]

Bentuk matriks dari SPLTV di atas adalah ....

• $\left(\begin{array}{ccc}2& -1& 3\\ -1& 2& -1\\ 3& 1& 0\end{array}\right)\left(\begin{array}{l}x\\ y\\ z\end{array}\right)=\left(\begin{array}{l}4\\ 1\\ 5\end{array}\right)$
• $\left(\begin{array}{ccc}2& -1& 3\\ 1& -2& 1\\ 3& 1& 0\end{array}\right)\left(\begin{array}{l}x\\ y\\ z\end{array}\right)=\left(\begin{array}{l}4\\ 1\\ 5\end{array}\right)$
• $\left(\begin{array}{ccc}2& 1& 3\\ 1& -2& 1\\ 3& 1& 0\end{array}\right)\left(\begin{array}{l}x\\ y\\ z\end{array}\right)=\left(\begin{array}{l}4\\ 1\\ 5\end{array}\right)$
• $\left(\begin{array}{ccc}2& -1& -3\\ -1& 2& -1\\ 3& -1& 0\end{array}\right)\left(\begin{array}{l}x\\ y\\ z\end{array}\right)=\left(\begin{array}{l}4\\ 1\\ 5\end{array}\right)$
• $\left(\begin{array}{ccc}2& -1& 3\\ -1& -2& -1\\ 3& -1& 0\end{array}\right)\left(\begin{array}{l}x\\ y\\ z\end{array}\right)=\left(\begin{array}{l}4\\ 1\\ 5\end{array}\right)$

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