Page 92 - Elementary_Linear_Algebra_with_Applications_Anton__9_edition
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(e)
Find the inverse of each of the following matrices, where , , , , and k are all nonzero.
9.
(a)
(b)
(c)
Consider the matrix
10.
(a) Find elementary matrices and such that .
(b) Write as a product of two elementary matrices.
(c) Write A as a product of two elementary matrices.
In each part, perform the stated row operation on
11.
by multiplying A on the left by a suitable elementary matrix. Check your answer in each case by performing the row
operation directly on A.
