Determinant and Inverse

Which of the following has a determinant of 0?
*det= ad-bc

• ⌈1  0⌉
  ⌊2  3⌋

• ⌈-4  -2⌉
  ⌊6   3⌋

Are A and B inverses? 
A = ⌈3  -10⌉
        ⌊1      4⌋
B = ⌈2/11  5/11⌉
         ⌊-1/22   3/22⌋
*AB=I

• Yes

• No

Tags

CCSS.HSA.REI.C.9

Find the determinant of the given matrix?

• 5

• -5

• 0

• -75

Find the determinant of the matrix

• A

• B

• C

• D

Find the determinant of the matrix

• A

• B

• C

• D

Find the inverse.

• A

• B

• C

• D

Tags

CCSS.HSA.REI.C.9

Calculate the Determinant

• det = 2

• det = -2

• det = -64

• det = 64

What is A^-1?

• 
• 
• 
• 

Tags

CCSS.HSA.REI.C.9

In Matrix R (pictured) what is the value of element R_3,2

• 8

• 9.01

• 6

• 1