Determinan dari $$$\left[\begin{array}{cc}6 & 1\\9 & -1\end{array}\right]$$$
Kalkulator terkait: Kalkulator Matriks Kofaktor
Masukan Anda
Hitung $$$\left|\begin{array}{cc}6 & 1\\9 & -1\end{array}\right|$$$.
Solusi
Determinan matriks 2x2 adalah $$$\left|\begin{array}{cc}a & b\\c & d\end{array}\right| = a d - b c$$$.
$$$\left|\begin{array}{cc}6 & 1\\9 & -1\end{array}\right| = \left(6\right)\cdot \left(-1\right) - \left(1\right)\cdot \left(9\right) = -15$$$
Jawaban
$$$\left|\begin{array}{cc}6 & 1\\9 & -1\end{array}\right| = -15$$$A
Please try a new game Rotatly