Understanding and applying determinants

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Which of the following are NOT inverse matrices of each other?

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If A is a non-singular matrix such that |𝐴| = 5, then find|𝐴⁻¹|.

• 5

• 25

• $\frac{1}{5}$

• NONE OF THE ABOVE

What is A^-1?

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Which function in Excel is used to calculate the transpose matrix?

• A

• B

• C

• D

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]

Are these inverses of each other?

• yes

• no

Find the inverse of the matrix.

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• No Inverse Exists

Determine if the matrix has an inverse, if so find it.

• No
•  0   1
  -1   2
• -1   3
    1   -2
•   2   -1
  -1   1