1 0 1]
.. Find the inverse of
by adjoint method.
0 2 3
1
2 1
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Answer:
The inverse of A is A-1 only when A × A-1 = A-1 × A = I.
To find the inverse of a 2x2 matrix: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc).
Sometimes there is no inverse at all.
Step-by-step explanation:
The inverse of A is A-1 only when A × A-1 = A-1 × A = I.
To find the inverse of a 2x2 matrix: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc).
Sometimes there is no inverse at all.
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