Course

ConceptMatrices - Addition and Multiplication and Multiplication with a Scalar

#### My Profile

My Profile [view full profile]

why create a profile on shaalaa.com?

1. Inform you about time table of exam.

2. Inform you about new question papers.

3. New video tutorials information.

1. Inform you about time table of exam.

2. Inform you about new question papers.

3. New video tutorials information.

#### Question

If `A=[[1,2,2],[2,1,2],[2,2,1]]` ,then show that `A^2-4A-5I=0` and hence find A^{-1}.

#### Solution

You need to to view the solution

Is there an error in this question or solution?