Page 90 - Elementary_Linear_Algebra_with_Applications_Anton__9_edition
P. 90
Find elementary matrices , , , and such that
(a)
(b)
(c)
(d)
In Exercise 3 is it possible to find an elementary matrix E such that ? Justify your answer.
4.
If a matrix is multiplied on the left by the given matrices, what elementary row operation is performed on that matrix?
5.
(a)
(b)
(c)
In Exercises 6–8 use the method shown in Examples Example 4 and Example 5 to find the inverse of the given matrix if the
matrix is invertible, and check your answer by multiplication.
6.
(a)
(b)
(c)
