Matrices

Question 1

Find the determinant of the matrix [[1, 0], [0, −2]].

Answer 

Question 2

A = [[1, −3], [−3, 2]] and B = [[5, 2], [5, −2]]. What is the bottom-right entry of AB?

Answer 

Question 3

Find the determinant of the matrix [[3, −3], [0, 5]].

Answer 

Question 4

A = [[5, 2], [5, −2]] and B = [[5, 2], [−3, 4]]. What is the bottom-left entry of AB?

Answer 

Question 5

Find the determinant of the matrix [[−3, 3], [−2, 2]].

Answer 

Question 6

A = [[5, −2], [−4, 2]] and B = [[3, 0], [−3, −1]]. What is the top-left entry of AB?

Answer 

Question 7

Find the determinant of the matrix [[−3, 8], [4, 9]].

Answer 

Question 8

A = [[5, 3], [4, 2]] and B = [[0, −1], [2, 5]]. What is the top-right entry of AB?

Answer 

Question 9

Find the determinant of the matrix [[7, 3], [8, −5]].

Answer 

Question 10

A = [[3, 5], [3, −1]] and B = [[−3, 0], [−2, −2]]. What is the bottom-left entry of AB?

Answer 

Question 11

Find the determinant of the matrix [[3, −3], [3, −2]].

Answer 

Question 12

A = [[−3, 0], [−3, −4]] and B = [[3, −1], [−2, 5]]. What is the bottom-right entry of AB?

Answer 

Question 13

Find the determinant of the matrix [[−1, 5], [2, 6]].

Answer 

Question 14

A = [[3, −4], [0, 3]] and B = [[4, 2], [5, −1]]. What is the top-left entry of AB?

Answer 

Question 15

Find the determinant of the matrix [[1, 9], [0, 3]].

Answer 

Question 16

A = [[5, 3], [2, −4]] and B = [[0, −3], [−1, 2]]. What is the top-left entry of AB?

Answer