# Question: in 11 and 12 let b 1...

###### Question details

In 11 and 12 let

B

=

1 0 1

2 1 3

0 2 3

.

11. Express

B

as a product of elementary matrices . Use the notation

P

ij

, D

i

(

c

)

and

T

ij

(

c

). Explain how you obtained this.

12. Express

B

−

1

as a product of elementary matrices. Use the notation

P

ij

, D

i

(

c

) and

T

ij

(

c

)Explain how you obtained this.