Math 240 - Chapter 4.2 - Vector Spaces I - The Plug and Chug Series #10

Source: Spring 2018 Practice Quiz 3

[maxpercer]

great video, straight and to the point.
'because addition is defined weird' --- is that millenial speak

notational quibble/critique
It makes more sense to use (a1, a2) and (b1, b2) than (a1, b1), (a2, b2)
also a^-1 is used for group theoretic inverses. for additive inverses might be better to call it 'negative'.
This gets confusing when looking at rings, there is addition and multiplication defined.
Vector space theory feels a bit like ring theory.