sebagaimana di atas. Nilai 2c
xD adalah ....
Jawaban:
[tex]= \left[\begin{array}{ccc} - 10& 26\\10& - 22\end{array}\right] [/tex]
Penjelasan dengan langkah-langkah:
[tex]2 \times \left[\begin{array}{ccc} - 2& 3\\4& - 1\end{array}\right] \times \left[\begin{array}{ccc}1& - 2\\ - 1&3\end{array}\right] \\ \\ = \left[\begin{array}{ccc} - 2 \times 2& 3 \times 2\\4 \times 2& - 1 \times 2\end{array}\right] \times \left[\begin{array}{ccc}1& - 2\\ - 1&3\end{array}\right] \\ \\ = \left[\begin{array}{ccc} - 4& 6\\8& - 2\end{array}\right] \times \left[\begin{array}{ccc}1& - 2\\ - 1&3\end{array}\right] \\ \\ = \left[\begin{array}{ccc} - 4 \times 1 + 6 \times ( - 1)& - 4 \times ( - 2) + 6 \times 3\\8 \times 1 + ( - 2) \times ( - 1)& 8 \times ( - 2) + ( - 2) \times 3\end{array}\right] \\ \\ = \left[\begin{array}{ccc} - 10& 26\\10& - 22\end{array}\right] [/tex]
[answer.2.content]
