111 Linear Algebra True False Questions

Описание: In this monster of a video, I solve 111 linear algebra true false questions in a mega 4.5 hour marathon. As an added bonus, I'll say every question number in a different language. I'll go through linear equations, matrix algebra, determinants, vector spaces, eigenvalues, orthogonality, and symmetric matrices.

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Here are the questions: https://sites.uci.edu/ptabrizi/files/...

Here are the answers (for explanations, watch the video): https://sites.uci.edu/ptabrizi/files/...

Here’s the link to the world’s most popular languages: http://www.ethnologue.com/13/top100.html

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Time stamps to my favorite problems:

Q20, (AB)^-1 = A^-1B^-1, 1:03:05
Q37, A^100 invertible implies A is also invertible, 1:37:10
Q41, Union of two subspaces is still a subspace, 1:46:00
Q55, Z is a subspace of R, 2:18:30
Q78, If A is invertible, then A is diagonalizable, 3:13:10
Q84, Every matrix has a real eigenvalue, 3:26:20
Q108, A symmetric matrix has only real eigenvalue, 4:17:17

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