determinan dari matrix -2 1 -3 adalah 4 0 5 6 7 2

jawab
Det Matriks 3x3



-2...1...-3...-2...1
4....0....5....4....0
6....7....2....6....7

p = -2(0)(2) + 1(5)(6) +(-3)(4)(7)
p = 0 + 30 - 84
p = -54

q = 6(0)(-3) + (7)(5)(-2)+(2)(4)(1)
q = 0 - 70 + 8
q = - 62

det = p - q
det = -54 - (-62)
det = 8