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Find the minors of the matrix A 2*2

User Mchl
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Answer: Given a 2x2 matrix A:

A = [a11 a12]

[a21 a22]

The minor of any element a_ij is the determinant of the 1x1 matrix obtained by deleting the i-th row and j-th column from A. In other words, the minor of a_ij is given by:

M_ij = det(A_ij)

where A_ij is the matrix obtained by deleting the i-th row and j-th column from A.

For example, the minor of a11 is given by:

M_11 = det([a22])

= a22

Similarly, we can find the minors of the other elements:

M_12 = det([a21])

= a21

M_21 = det([a12])

= a12

M_22 = det([a11])

= a11

Therefore, the minors of the matrix A are:

M = [a22 a21]

[a12 a11]

Explanation:

User AIMABLE
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