One way to compute the determinant is by elimination. In this lecture we derive two related formulas for the determinant using the properties from last lecture.
Lecture Video and Summary
- Watch the video lecture Lecture 19: Determinant Formulas and Cofactors
- Read the accompanying lecture summary (PDF)
- Lecture video transcript (PDF)
- Read Section 5.2 in the 4th or 5th edition.
Problem Solving Video
Watch the recitation video on Problem Solving: Determinants
观看视频: 习题讲解 – 行列式 [watch this recitation in Mandarin]
Problems and Solutions
Work the problems on your own and check your answers when you’re done.