ADJOINT OF A MATRIX WORKSHEET

Find the adjoint of the following matrices :

Problem 1 :

Problem 2 :

Problem 3 :

Problem 4 :

Problem 5 :

tutoring.png

Answers

1. Answer :

To find adjoint of a 2x2 matrix, we have to switch the elements of the primary diagonal and change the signs of the elements of the secondary diagonal.

Therefore,

2. Answer :

3. Answer :

Find the cofactor of each element.

Cofactor of 1 :

Cofactor of 1 :

Cofactor of 1 :

Cofactor of 1 :

Cofactor of 2 :

Cofactor of -3 :

Cofactor of 2 :

Cofactor of -1 :

Cofactor of 3 :

The cofactor matrix of A is

Therefore,

4. Answer :

5. Answer :

Kindly mail your feedback to v4formath@gmail.com

We always appreciate your feedback.

©All rights reserved. onlinemath4all.com

Recent Articles

  1. How to Solve Age Problems with Ratio

    Mar 28, 24 02:01 AM

    How to Solve Age Problems with Ratio

    Read More

  2. AP Calculus BC Integration of Rational Functions by Partical Fractions

    Mar 26, 24 11:25 PM

    AP Calculus BC Integration of Rational Functions by Partical Fractions (Part - 1)

    Read More

  3. SAT Math Practice

    Mar 26, 24 08:53 PM

    satmathquestions1.png
    SAT Math Practice - Different Topics - Concept - Formulas - Example problems with step by step explanation

    Read More