May 2022 0 24 Report
SOAL MATRIKS

W = [tex]\left[\begin{array}{ccc}6&11\\5&4\\-2&0\end{array}\right][/tex]
X = [tex]\left[\begin{array}{cccc}10&0&0&0\\3&11&8&2\\2&12&7&1\\-3&13&6&0\end{array}\right][/tex]
Y = [tex]\left[\begin{array}{ccc}4&-12&9\\1&-2&2\\6&-8&8\end{array}\right][/tex]
Z = [tex]\left[\begin{array}{ccc}-12&4\\2&1\\-4&6\end{array}\right][/tex]

Tentukanlah :
1. Y'Z
2. W+2Z
3. det X dengan ekspansi kofaktor

4. Tentukan SPL dari
[tex]\left[\begin{array}{ccc}4&-12&9\\1&-2&2\\6&1&5\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right] = \left[\begin{array}{ccc}-12\\1\\1\end{array}\right][/tex]
Tentukan SPL berikut dengan
a. Eliminasi Gauss
b. Metode Crammer
c. Metode invers matriks
d. Tentukan nilai dari x+y+z=....

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