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\noindent
\href{http://www.math.toronto.edu/~drorbn}{Dror Bar-Natan}:
\href{http://www.math.toronto.edu/~drorbn/classes}{Classes}:
\href{http://www.math.toronto.edu/~drorbn/classes/\#1617}{2016-17}:
\href{http://drorbn.net/1617-257}{1617-257 Analysis II}:
{\bf Day 2 Handout}:
\hfill \qrcode[height=3em,level=L,nolink]{drorbn.net/1617-257}

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\noindent{\large\bf Quick Review of some Linear Algebra}

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