Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

    
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

777,521 users

Inverse matrix

0 votes
Find inverse of matrix

0 3 5

-1 1 6

1 0 -4
asked Jun 28, 2016 in PRECALCULUS by anonymous
reshown Jun 29, 2016 by goushi

1 Answer

0 votes

Step 1:

The matrix is image.

Definition of inverse matrix:

If is an then , where .

Let , then .

image

, then has an inverse.

Step 2:

Cofactor of is

image

Cofactor of image

image

image

image

Find .

image

image

image

Solution:

The inverse of the is image

answered Jun 29, 2016 by Anney Mentor

Related questions

asked Jul 7, 2016 in PRECALCULUS by anonymous
asked Jul 7, 2016 in PRECALCULUS by anonymous
asked Jun 30, 2016 in PRECALCULUS by anonymous
asked Jun 30, 2016 in PRECALCULUS by anonymous
...