Tentukan determian dan invers dari matriks berikut A. 5 2 -3 1 B. -1 4 2 8

determinan = ad-bc
a. 5*1 - -3*2 = 5+6=11
b. -8-8=-16

invers = 1/determinan [tex] \left[\begin{array}{ccc}d&-b\\-c[tex]

a. \frac{1}{11} \left[\begin{array}{ccc}1&-2\\3&5\end{array}\right] [/tex]&a\end{array}\right] [/tex]

b. 1/-16 (8 -4
                -2 -1)