- #1
fishshoe
- 16
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Homework Statement
Prove: Every nxn matrix can be written as a linear combination of matrices in GL(n,F).
Homework Equations
GL(n,F) = the set of all nxn invertible matrices over the field F together with the operation of matrix multiplication.
The Attempt at a Solution
I know all matrices in GL(n,F) are invertible and hence have linearly independent columns and rows. I was thinking perhaps there is something about the joint bases for the n-dimensional column and row spaces, respectively, that could provide a basis for M_{nxn}(F), which has dimension of n^2. But I'm not really sure if that works.