111 Linear Algebra True False Questions

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. ******** 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 ******** 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 ******** Subscribe to my channel:    / drpeyam