6. Diketahui persamaan matriks : $$ \mathrm{X} \cdot\left(\begin{array}{cc}3 & 2 \ -4 & -3\end{array} ight)=\left(\begin{array}{ll}4 & 2 \ 3 & 1\end{array} ight), \mathrm{X} $$ adalah matriks berordo $$ (2 imes 2) $$ maka $$ \mathrm{X}=\ldots $$. 7. Ditentukan matriks $$ \mathrm{A}=\left(\begin{array}{rr}2 & -1 \ 3 & 5\end{array} ight), \mathrm{B}=\left(\begin{array}{rr}4 & -3 \ p & 1\end{array} ight) $$, dan $$ \mathrm{C}=\left(\begin{array}{cc}10 & -7 \ 2 & -4\end{array} ight) $$ Jika $$ \mathrm{AB}=\mathrm{C} $$, nilai $$ \mathrm{p}=\ldots $$

Question

6. Diketahui persamaan matriks : $$ \mathrm{X} \cdot\left(\begin{array}{cc}3 & 2 \ -4 & -3\end{array}ight)=\left(\begin{array}{ll}4 & 2 \ 3 & 1\end{array}ight), \mathrm{X} $$ adalah matriks berordo $$ (2 	imes 2) $$ maka $$ \mathrm{X}=\ldots $$. 7. Ditentukan matriks $$ \mathrm{A}=\left(\begin{array}{rr}2 & -1 \ 3 & 5\end{array}ight), \mathrm{B}=\left(\begin{array}{rr}4 & -3 \ p & 1\end{array}ight) $$, dan $$ \mathrm{C}=\left(\begin{array}{cc}10 & -7 \ 2 & -4\end{array}ight) $$ Jika $$ \mathrm{AB}=\mathrm{C} $$, nilai $$ \mathrm{p}=\ldots $$

Lewis Hodges · Accepted Answer

6. $$ \mathrm{X} = \begin{pmatrix} 4 & 2 \ 5 & 3 \end{pmatrix} $$ 7. $$ p = -2 $$

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