Q. 75.0( 1 Vote )

Find the minor of

Answer :

The minor is defined as a value obtained from the determinant of a square matrix by deleting out a row and a column corresponding to the element of a matrix.

Here, we are given with correspondence of second row and third column (a23), this means that we are required to delete the second row and third column in order to obtain a square matrix and find the determinant of it.

We have,

Where the second row and third column is highlighted.

Deleting the second row and third column, we get

We know how to solve,


Thus, minor of the given element is 13.

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