Linear algebra matrices multiplication (transpose)

[dmoney123]

Homework Statement

We are looking for the matrix A

Homework Equations

(A^transpose)^transpose=A

The Attempt at a Solution

i would start with finding the transpose of the matrix.

-5 0
-8 -7

 

[Mark44]

Homework Statement

We are looking for the matrix A

Homework Equations

(A^transpose)^transpose=A

The Attempt at a Solution

i would start with finding the transpose of the matrix.

-5 0
-8 -7

OK, so
$$((2A - I)^T)^T = \begin{bmatrix}-5&0\\-8&-7\end{bmatrix}$$

Now what? Use your relevant equation to simplify the left side.

 

[dmoney123]

S0 + identity matrix on left side... =

[-4 0] ... then /2= [-2 0]
-8 -6 ......-4 -3

GOT IT!