Expansion of a Determinant#!#Minors and Cofactors

Polynomial functions of matrices | Determinant introduction | Order of determinant | Minor and cofactor of determinant

Cofactors are

Find the determinants of minors and cofactors of the determinant |{:(2,3,4),(7,2,-5),(8,-1,3):}|

Value of determinant formed by cofactors

Determinant|Order Of Determinant|Value Of Determinant|Questions|Minor & Cofactor|Porperties|Questions|OMR

Determinants|Expansion Of Determinant|Exercise Questions|OMR

Which of the following is not correct in a given determinant of A , where A=([a_(i j)])_(3x3) (a)Order of minor is less than order of the det(A)(b) Minor of an element can never be equal to cofactor of the same element (c)Value of a determinant is obtained by multiplying elements of a row or column by corresponding cofactors (d)Order of minors and cofactors of elements of A is same

Determinant : Basic Introduction || Minors and COFactors|| Important points

If the value of a third order determinant is 11 then the value of the square of the determinant formed by the cofactors will be