Question

If A is a square of matrix of order 3,such that |adj A|=25 then find the value of |A|

Answer 1

Answer:

consider the following identity A (adj) =lAl i. Thus

Step-by-step explanation:

compparing it with the above equation gives us lAl =10 now l adj Al m-i where n is the order of here n is 3, therefore, l adj Al =lAl 3-l =lAl2 =10 2 =100