Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching Theorem 1.7.1 (Part 1) (Properties of Triangular Matrices). and this video is uploaded by MathIsFunDaily at 2022-03-10T11:01:37-08:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [JA-NY5epjKk]