Find the minors and cofactors of the elements of the determinants : `|(2,6),(4,-5)|`

Find the minors and cofactors of the elements of the determinants : |(1,0,4),(3,5,2),(-9,8,6)|

If A_("ij") is the cofactor of the element a_("I j") of the determinant |(2,-3,5),(6,0,4),(1,5,-7)| , then write the value of a_(32). A_(32) .

What is the co-factor of 7 in the determinant |(4,5,6),(5,6,7),(13,15,17)| .

Find the inverse of the matrix by using determinant : [(1,2),(2,5)]

What is the value of following determinant ? |(2, u, 13),(4, v, 26),(6, w, 39)|

Find the co-factor of a_12 in the following : |(2,-3,5),(6,0,4),(1,5,-7)| .

Find the multiplicative inverse elements of the following real numbers: -4

Determine the distances between the points : 2,6

Find the areas of the quadrilaterals formed by the following points:(i)(6,1),(5,6),(2,4),(4,1)