determinan K Dan 4k

Rumus : det A = | a b | = ad- bc
............................| c d |

det k = | 6 2 | = 6×1 - 2×3 = 6 - 6 = 0
............| 3 1 |
det 4k = | 4 2 | = | 16 8 | =
..............| 3 5 |.....| 12 20 |

--> 16×20 - 8×12 = 320 - 96 = 224 .

maaf kalau salah .