Reading the definitions back

Exercise and reference answers

Questions

1. Question

   A matrix with one row is a

   Choices

   1. row matrix
   2. column matrix
   3. square matrix

   Correct choice

   row matrix

2. Question

   A square matrix satisfies

   Choices

   1. m > n
   2. m = n
   3. m = 1

   Correct choice

   m = n

3. Question

   A symmetric matrix satisfies

   Choices

   1. A′ = −A
   2. A′ = I
   3. A′ = A

   Correct choice

   A′ = A

4. Question

   The transpose of an m × n matrix has order

   Choices

   1. n × m
   2. m × n
   3. n × n

   Correct choice

   n × m

Explanation