Question

how can i find the invese of matrix

Answer 1

Inverse of matrix is A^-1

Answer 2

Here is the definition:

The Inverse of A is A-1 only when:

A × A-1 = A-1 × A = I

Sometimes there is no Inverse at all.

2x2 Matrix

OK, how do we calculate the Inverse?

Well, for a 2x2 Matrix the Inverse is:



In other words: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc).