Determinants practice problems

4 problems from Linear Algebra, each with a full worked solution.

1. Problem 1

   Difficulty 1/5
   
   ▸See solution

2. Problem 2

   Difficulty 2/5
   
   ▸See solution

3. Problem 3

   Difficulty 1/5
   
   ▸See solution

4. Problem 4

   Difficulty 3/5
   
   ▸See solution