How it works
For [[a, b], [c, d]], det = ad − bc and the inverse is 1/det × [[d, −b], [−c, a]].
Matrix Calculator (2×2)
Determinant and inverse of a 2×2 matrix.
Your details
Determinant
10
Inverse row 1
0.6, -0.7
Inverse row 2
-0.2, 0.4
Trace
10
Determinant and inverse of a 2×2 matrix.
For [[a, b], [c, d]], det = ad − bc and the inverse is 1/det × [[d, −b], [−c, a]].