Matrices

What is the Inverse of A? Show work by hand.

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• Cannot Determine

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Tags

CCSS.HSA.REI.C.9

What is the inverse of the following matrix?

⌈4 −3⌉

⌊12 3⌋

• ⌈1/16 1/16⌉

  ⌊-1/4 1/12⌋

• ⌈4/48 -3/48⌉

  ⌊12/48 3/48⌋

• ⌈2/24 −3/48⌉

  ⌊-6/48 3/48⌋

• ⌈3/48 3/48⌉

  ⌊-12/48 4/48⌋

Tags

CCSS.HSA.REI.C.9

• 5   -2
  -3    1
• -5   2
  3   -1
• -5   3
  2   -1
• 1   -3
  -2    5

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

Solve. Find Z.

• A

• B

• C

• D

Tags

CCSS.HSA.REI.C.9

Which option below correctly shows the steps to find the inverse of this matrix?

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• 
• 
• No Inverse Exists

Tags

CCSS.HSA.REI.C.9

Which of the following must be true for a matrix to be invertible? Choose all that apply.

• The matrix must be square.

• The determinant must be zero.

• The determinant must not be zero.

• The matrix cannot have any negative entries.

Tags

CCSS.HSA.REI.C.9

By using Elementary transformation we can find

• Inverse

• Symmetric matrix

• Scalar Matrix

• None

Tags

CCSS.HSA.REI.C.9

If A is a square matrix such that  $A^2=A$   then write the value of  
 $\left(I+A\right)^3$  -7A

• 2I

• A

• I

• NONE OF THE ABOVE

Tags

CCSS.HSA.REI.C.9

Find the inverse of the square matrix without a calculator

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Tags

CCSS.HSA.REI.C.9