invers matriks [6 -3] [2 -2] adalah

misal:
A = [6 -3] [2 -2]

Rumus
[ A^-1 = ( 1/det A) adj. A ]

Adj A = [-2 3] [-2 6]

det A = (6×-2) - (-3×2)
det A = -12 + 6
det A = -6

A^-1 = 1/-6 [-2 3] [-2 6]
A^-1 = [1/3 -1/2] [1/3 -1]