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Which side of the inverse test?

Exercise and reference answers

Items
  1. Item
    |A| = 5
    Category
    Inverse exists
  2. Item
    A is non-singular
    Category
    Inverse exists
  3. Item
    |A| ≠ 0
    Category
    Inverse exists
  4. Item
    |A| = 0
    Category
    No inverse
  5. Item
    A is singular
    Category
    No inverse
Categories
  1. Item
    Inverse exists
  2. Item
    No inverse

Explanation

Sorting the conditions that do and do not permit an inverse. Source: syllabus Maths Part I, Ch 4 Determinants.
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