Find value of x,if .

If ,then x is equal to

If any two rows or any two columns are identical or proportional,then value of determinant is _______ .

By using properties of determinants,evaluate :

.

If ,find |A|.

If any two rows or any two columns are identical or proportional, then value of determinant is ____

For any ________ matrix A, |A^'| = |A|,where A^'=transpose of A .

(AB)^-1 = __________

___________ of an element a_ij of a determinant is the determinant obtained by deleting its i^_th row and j^_th column in which element a_ij lies.

Evaluate .