Suppose W is a set of 2 x 2 matrices A with trace A = 0 , and is a subspace of M2,2 Consider the matrices a,b,c below: a = [ 0 1          0 0] b = [ 0 0           1 0 ] c = [ 1 0          0 -1] If Y = { matrix a , matrix b , matrix c} show that Span Y = W

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.5: Subspaces, Basis, Dimension, And Rank
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Suppose W is a set of 2 x 2 matrices A with trace A = 0 , and is a subspace of M2,2

Consider the matrices a,b,c below:

a = [ 0 1
         0 0]

b = [ 0 0 
         1 0 ]

c = [ 1 0 
        0 -1]

If Y = { matrix a , matrix b , matrix c}

show that Span Y = W

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