Math Problem Solver

[8] In each case, let T:R

3 → R

3

be multiplication by A. Determine whether T has an inverse and find

T

−1 ([

x1

x2

x3

]) .

[9] Where A = [

1 4 −1

1 2 1

−1 1 0

] (b) Where A = [

1 −1 1

0 2 −1

2 3 0

] (c) A = [

1 0 1

0 1 1

1 1 0