I'm so pissed off about this question.

I think the answer was right but it said still wrong.. I need to make sure the answer before I will email professor. Does anyone who can check for it ?????????????!!!! Thank you :)

involving the inverses of matrices A and B. Use the matrices shown below instead of those given in your text.

A=1 -3 B= 1 -2
2 -5 2 -3

(1)Find A^-1
(2)Find B^-1

my first answer was -5 3
-2 1
and second one was -3 2
-2 1

Question

I'm so pissed off about this question.

I think the answer was right but it said still wrong..  I need to make sure the answer before I will email professor. Does anyone who can check for it ?????????????!!!! Thank you :)

involving the inverses of matrices A and B. Use the matrices shown below instead of those given in your text.

A=1  -3                 B= 1 -2
     2    -5                    2   -3

(1)Find A^-1
(2)Find B^-1

my first answer was -5 3
                                -2  1
and second one was -3  2
                                 -2  1

lynfran · Answer

|dw:1437273670566:dw|im getting the same thing... http://www.mathwords.com/i/inverse_of_a_matrix.htm for more info..