Find all (a) minors and (b) cofactors of the matrix. Then (c) expand by cofactors to find the determinant. Please show your work. It would help a lot. Thx [ -6 4 -16 ] [ -6 -4 12 ] [ 2 -6 -12 ]

Question

[ -6 4 -16 ]

[ -6 -4 12 ]

[ 2 -6 -12 ]

Answer 1

[ -6 4 -16 ]

[ -6 -4 12 ]

[ 2 -6 -12 ]

CoFactors Determinant

[120 - 48 44] -6(48+72) -4(72-24) -16(36+48) = -1616

[144 104 -28]

[- 16 168 48]