Jika matriks = (2 3 − 5 − 7 ), Tentukan −1
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Jawab:
-1 = [tex]\left[\begin{array}{ccc}7~~~~-3\\\\-5~~~~~~~2\end{array}\right][/tex]
Penjelasan dengan langkah-langkah:
[tex]\frac{1}{ad -bc}[/tex] [tex]\left[\begin{array}{ccc}d~~~~~~-b\\\\-c~~~~~~~~a\end{array}\right][/tex]
= [tex]\frac{1}{2~7~-~3~5}[/tex] [tex]\left[\begin{array}{ccc}7 ~~~-3\\\\-5~~~~~~~2\end{array}\right][/tex]
= [tex]\frac{1}{14- 15}[/tex] [tex]\left[\begin{array}{ccc}7~~~~-3\\\\-5~~~~~~~2\end{array}\right][/tex]
= [tex]\frac{1}{-1}[/tex] [tex]\left[\begin{array}{ccc}7~~~~-3\\\\-5~~~~~~~2\end{array}\right][/tex]
= - 1 [tex]\left[\begin{array}{ccc}7~~~~-3\\\\-5~~~~~~~2\end{array}\right][/tex]
-1 = [tex]\left[\begin{array}{ccc}7~~~~-3\\\\-5~~~~~~~2\end{array}\right][/tex]
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semoga bermanfaat
selamat belajar dan semangat
[tex]\beta est~answer:asya291006[/tex]
[answer.2.content]
