Determinant quick calls

Exercise and reference answers

Questions

1. Question

   Determinant of a matrix with a zero determinant row

   Choices

   1. Zero
   2. One
   3. Undefined

   Correct choice

   Zero

2. Question

   Order of a minor from an order 4 determinant

   Choices

   1. Four
   2. Three
   3. Five

   Correct choice

   Three

3. Question

   Best row to expand along

   Choices

   1. Any at random
   2. The longest one
   3. The one with most zeros

   Correct choice

   The one with most zeros

4. Question

   A matrix with non-zero determinant

   Choices

   1. Non-singular
   2. Singular
   3. Undefined

   Correct choice

   Non-singular

Instructions

Tap the right answer for each case.

Explanation