No 50 tolong dibantu yaa :)

(B.A^-1)^-1 = (3 ... 1) =====> sifat : (AB)^-1 = B^-1.A^-1
..................... (2 .. 2)

(A^-1)^-1 . B^-1 = (3 ... 1)
............................. (2 .. 2)

A . B^-1 = (3 ... 1) =====> sifat : XA = B => X = B.A^-1
................. (2 .. 2)

A = (3 ... 1) B
....... (2 .. 2)

A = (3 ... 1) (5 ... 2) = (15 + 3 ... 6 + 1) = (18 ... 7)
...... (2 .. 2) (3 ... 1) .... (10 + 6 .. 4 + 2) .. (16 .. 6)

A^t = (18 ... 16)
.......... (7 ..... 6)

Kalau kurang jelas bisa langsung tanya

Jadikan jawaban terbaik ya.