12-240/Classnotes for Tuesday November 6: Difference between revisions

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2. For A <math>\in M_(m \times n)</math> and B <math>\in M_(n \times p)</math> and C <math>\in M_(p \times q)</math>,
2. For A <math>\in M_(m \times n)</math> and B <math>\in M_(n \times p)</math> and C <math>\in M_(p \times q)</math>,
(AB)C = a(BC)
(AB)C = A(BC)


== Lecture notes scanned by [[User:Zetalda|Zetalda]] ==
== Lecture notes scanned by [[User:Zetalda|Zetalda]] ==

Latest revision as of 05:52, 7 December 2012

Riddle

Find A and B such that AB - BA = I

Theorems

1. Given U with basis , V with basis , W with basis

2. For A and B and C , (AB)C = A(BC)

Lecture notes scanned by Zetalda