Adjoint of matrix worksheet





In this page adjoint of matrix worksheet we are going to see practice questions of matrix.

Definition:

Let A = [aij] be a square matrix of order n. Let Aij be a cofactor of aij. Then nth order matrix [Aij]^T is called adjoint of A. It is denoted by Adj A. In other words we can define adjoint of matrix as transpose of co factor matrix.


Minor of matrix

Practice questions



1) Find the adjoint of the following matrix

 
2 1 1
1 1 1
1 -1 2
 

Solution

2) Find the adjoint of the following matrix

 
1 2 3
1 1 1
2 3 4
 

Solution

3) Find the adjoint of the following matrix

 
6 2 3
3 1 1
10 3 4
 

Solution

4) Find the adjoint of the following matrix

 
1 1 -1
2 -3 4
3 -2 3
 

Solution

5) Find the adjoint of the following matrix

 
4 2 1
6 3 4
2 1 0
 

adjoint of matrix worksheet adjoint of matrix worksheet

Solution

Related pages

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Math is not only solving problems and finding solutions and it is also doing many things in our day to day life.  They are: 

It subtracts sadness and adds happiness in our life.    

It divides sorrow and multiplies forgiveness and love.

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Many people think that the subject math is always complicated and it exists to make things from simple to complicate. But the real existence of the subject math is to make things from complicate to simple.”

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