Matrices definitions

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10 Terms

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Null matrix

<p><img src="blob:null/76bd9f4f-7dec-486c-a416-1d0ad97cf16b"></p>
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Identity matrix

<p><img src="blob:null/196c8585-ee46-43f8-bae1-af3b4665bca1"></p>
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Transpose of a matrix

When the rows and columns are swapped

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(AB)^T

=B^T A^T

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No inverse

Determine = 0

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Singular

Determine = 0

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Non singular

Determine doesn’t = 0

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P and Q are non singular matrices. Prove that (PQ)^-1= Q^-1 P^-1

Let X =(PQ)^-1

<p>Let X =(PQ)^-1 </p>
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If asked to prove a matrix is self inverse..

You must prove that A=A^-1

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