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Session Overview

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.

Session Activities

Lecture Video and Summary

• Watch the video lecture Lecture 19: Determinant Formulas and Cofactors
• Read the accompanying lecture summary (PDF)
• Lecture video transcript (PDF)

Suggested Reading

• Read Section 5.2 in the 4^th or 5^th edition.

Problem Solving Video

• Watch the recitation video on Problem Solving: Determinants

• Recitation video transcript (PDF)

• 观看视频: 习题讲解 – 行列式 [watch this recitation in Mandarin]

Check Yourself

Problems and Solutions

Work the problems on your own and check your answers when you’re done.

• Problems (PDF)
• Solutions (PDF)

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