If `A=|[3, 0,-1], [2, 3 ,0], [0, 4, 1]|` , then find `|a d j\ (a d j\ A)|` .

If A=[[3,-3, 4], [2,-3, 4], [0,-1, 1]] , then a. a d j(a d j A)=A b. |a d j(a d j A)|=1 c. a d j A=I d. none of these

If A=[(3, 1) , ( 2 ,-3)] , then find |a d j\ A| .

If A=[(a , b),( c, d)] , B=[(1 ,0),( 0, 1)] , find a d j\ (A B) .

If A=[[1 ,3 ,3],[ 1, 4 ,3],[ 1, 3, 4]] ,then verify that A a d j A = |A|I . Also find A^(-1) .

If A=[(2,-1, 1),(-1, 2,-1),( 1,-1, 2)] , find (a d j\ A)^(-1) and (a d j\ A^(-1)) .

If A= [ [1, 2] , [-1, 1]] , then det (a d j\ A)) is ?

If A=[[-4,-3,-3],[ 1, 0 ,1],[ 4 ,4, 3]] , show that a d j\ A=A .

If A is a square matrix such that A(a d j\ A)=[(5, 0, 0),(0, 5, 0),(0, 0, 5)] , then write the value of |a d j\ A| .

If A= [ 2 5 7 9 0 1 9 7 0 0 -1 8 0 0 0 1 ] then the value of |a d j(a d j A)| is

Compute the adjoint of each of the following matrices: [[1, 2, 2],[ 2 ,1 ,2],[ 2, 2, 1]] (ii) [[1, 2, 5],[ 2, 3,1],[-1, 1, 1]] (iii) [[2,-1, 3],[ 4, 2, 5],[ 0, 4,-1]] (iv) [[2, 0,-1],[ 5, 1, 0],[ 1, 1, 3]] Verify that (a d j\ A)A=|A|I=A(a d j\ A) for the above matrices.