Inverse of Determinant

Which of the following matrices has an inverse of  ⌈−⅗  ⅘⌉
  ⌊⅖  −⅕⌋ ?
*det = -5

• ⌈1  2⌉
  ⌊3  4⌋

• ⌈1 3⌉
  ⌊2  4⌋

• ⌈1  4⌉
  ⌊2  3⌋

• ⌈−3  4⌉
  ⌊2 −1⌋

Tags

CCSS.HSA.REI.C.9

Which of the following is the inverse of the matrix A= 
⌈3  0⌉
⌊0  2⌋
*Inverse=
                 ¹∕detA × ⌈d  −b⌉                                      ⌊−c  a⌋

• [1/2    0]
  [0    1/3]

• [-3  0]
  [0  -2]

• ⌈1/3   0⌉
  ⌊0   1/2⌋

• [2  0]
  [0  3]

Tags

CCSS.HSA.REI.C.9

Find the inverse of the matrix.

• 
• 
• 
• No Inverse Exists

Tags

CCSS.HSA.REI.C.9

Identify

• singular matrix

• partial fraction

• coeffecient matrix

• inverse matrix

Tags

CCSS.HSA.REI.C.9

Which matrix has an undefined inverse?
*undefined matrices have determinants of 0

• [1  2]
  [0  3]

• [1/2  3/4]
  [4/2  9/3]

Tags

CCSS.HSA.REI.C.9

What is the inverse of this matrix?

• _{(1/25)  (-4/25)
  (3/25)  (13/25)}

• _{(1/5)  (-4/5)
  (3/5)  (13/5)}

• _{(6/25)  (-2/25)
  (2/25)  (9/25)}

• _{(1/150)  (-4/150)
  (3/150)  (13/150)}

Tags

CCSS.HSA.REI.C.9

Find the inverse.

• A

• B

• C

• D

Tags

CCSS.HSA.REI.C.9

Will this matrix have an inverse?

• Yes

• No

• Unable to Determine

Tags

CCSS.HSA.REI.C.9

Are these matrices inverses of each other?

• Yes

• No

• Unable to Determine

Tags

CCSS.HSA.REI.C.9

Find the inverse of the matrix

• A

• B

• C

• D

Tags

CCSS.HSA.REI.C.9