Q1 of 74 Page 7

Find the adjoint of each of the following Matrices.


Verify that (adj A) A=|A| I=A (adj A) for the above matrices.

A =


Cofactors of A are


C11 = 1


C12 =


C21 =


C22 = 1


Since, adj A =


(adj A) =


=


Now, (adj A)A =


=


(adj A)A =


And, |A|.I =


=


Also, A(adj A) =


=


=


Hence, (adj A)A = |A|.I = A.(adj A)


More from this chapter

All 74 →
1

Find the adjoint of each of the following Matrices.


Verify that (adj A) A=|A| I=A (adj A) for the above matrices.

 1

Find the adjoint of each of the following Matrices.


Verify that (adj A) A=|A| I=A (adj A) for the above matrices.

 2

Find the adjoint of each of the following Matrices and Verify that (adj A) A = |A| I = A (adj A)


Verify that (adj A) A=|A| I=A (adj A) for the above matrices.

 2

Find the adjoint of each of the following Matrices and Verify that (adj A) A = |A| I = A (adj A)


Verify that (adj A) A=|A| I=A (adj A) for the above matrices.